{"title":"Harrop Eaton Truetrac Differentials","description":"\u003cp\u003e\u003cstrong\u003eHarrop \/ Eaton Truetrac helical-gear limited-slip differentials\u003c\/strong\u003e for supported Ford, Holden and performance driveline applications.\u003c\/p\u003e\u003cp\u003eChoose the exact differential family, spline count and vehicle application shown on the product page. Truetrac units use a gear-driven limited-slip design without clutch packs. Built by Boost \u0026amp; Tune can assist with fitment and workshop installation.\u003c\/p\u003e","products":[{"product_id":"harrop-detroit-truetrac-ford-7-5-c-clip-28-spline","title":"Harrop Detroit Truetrac | Ford 7.5 C-Clip 28 Spline","description":"\u003ch2\u003eHarrop Eaton Truetrac | Ford 7.5-inch C-Clip | 28 Spline\u003c\/h2\u003e\n\u003cp\u003eGear-driven Eaton Truetrac limited-slip differential supplied through Harrop for Ford 7.5-inch C-clip rear axle applications.\u003c\/p\u003e\n\u003ch3\u003eManufacturer-confirmed features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHelical-gear limited-slip design\u003c\/li\u003e\n\u003cli\u003eNo clutch packs or friction plates\u003c\/li\u003e\n\u003cli\u003eAutomatic torque biasing toward the wheel with greater available traction\u003c\/li\u003e\n\u003cli\u003eSmooth, quiet and maintenance-free operation\u003c\/li\u003e\n\u003cli\u003eHarrop lists a 36-month warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eHarrop lists Ford vehicle applications produced approximately 1983–2007 using the Ford 7.5-inch housing and 28-spline C-clip axles, including selected Ranger, Explorer, Aerostar, Bronco II and Mustang applications.\u003c\/p\u003e\n\u003cp\u003eHarrop product code: \u003cstrong\u003e63-912A316\u003c\/strong\u003e.\u003c\/p\u003e\u003ch2\u003eWorkshop Support\u003c\/h2\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eFord Driveline Ford75 28SPLINE\u003c\/li\u003e\u003c\/ul\u003e","brand":"Harrop","offers":[{"title":"Default Title","offer_id":43654276481091,"sku":"63-912A316","price":1353.68,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/Detroit_20Truetrac-1024x1024.jpg?v=1786483351"},{"product_id":"harrop-detroit-truetrac-ford-mustang-gt-2016-plus","title":"Harrop Detroit Truetrac | Ford Mustang GT 2016+","description":"\u003ch2\u003eHarrop Detroit Truetrac | Ford Mustang GT 2016+\u003c\/h2\u003e\n\u003cp\u003eHarrop \/ Eaton Truetrac helical-gear limited-slip differential for the exact application below.\u003c\/p\u003e\n\u003ch3\u003eHow the Truetrac works\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGear-driven helical limited-slip design\u003c\/li\u003e\n\u003cli\u003eNo clutch packs or friction plates\u003c\/li\u003e\n\u003cli\u003eAutomatically biases torque toward the wheel with greater available traction\u003c\/li\u003e\n\u003cli\u003eSmooth, quiet operation compared with locking-style differentials\u003c\/li\u003e\n\u003cli\u003eMaintenance-free internal traction mechanism\u003c\/li\u003e\n\u003cli\u003eHarrop lists a 36-month warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eFord Mustang GT 2016 onward.\u003c\/p\u003e\n\u003cp\u003eCorrect housing, spline count, bearings and axle configuration must be confirmed before installation. Differential bearing preload and backlash must be set correctly.\u003c\/p\u003e\u003ch2\u003eWorkshop Support\u003c\/h2\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eFord Mustang S550 S650 5 0 Coyote\u003c\/li\u003e\u003c\/ul\u003e","brand":"Harrop","offers":[{"title":"Default Title","offer_id":43654276513859,"sku":"63-917A731","price":1470.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/Mustang_20Truetrac-2-1024x1024.jpg?v=1786483359"},{"product_id":"harrop-detroit-truetrac-m80-28-spline","title":"Harrop Detroit Truetrac | M80 28 Spline","description":"\u003ch2\u003eHarrop Detroit Truetrac | M80 28 Spline\u003c\/h2\u003e\n\u003cp\u003eHarrop \/ Eaton Truetrac helical-gear limited-slip differential for the exact application below.\u003c\/p\u003e\n\u003ch3\u003eHow the Truetrac works\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGear-driven helical limited-slip design\u003c\/li\u003e\n\u003cli\u003eNo clutch packs or friction plates\u003c\/li\u003e\n\u003cli\u003eAutomatically biases torque toward the wheel with greater available traction\u003c\/li\u003e\n\u003cli\u003eSmooth, quiet operation compared with locking-style differentials\u003c\/li\u003e\n\u003cli\u003eMaintenance-free internal traction mechanism\u003c\/li\u003e\n\u003cli\u003eHarrop lists a 36-month warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eHolden Commodore VT–VZ including HSV variants using the M80 IRS differential; Ford Falcon BA\/BF\/FG 6-cylinder non-turbo IRS variants.\u003c\/p\u003e\n\u003cp\u003eCorrect housing, spline count, bearings and axle configuration must be confirmed before installation. Differential bearing preload and backlash must be set correctly.\u003c\/p\u003e\u003ch2\u003eWorkshop Support\u003c\/h2\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFord Falcon BA BF Barra\u003c\/li\u003e\n\u003cli\u003eFord Falcon FG FG-X Barra\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Harrop","offers":[{"title":"Default Title","offer_id":43654277759043,"sku":"63-912A642","price":1360.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/Detroit_20Truetrac-1024x1024_396c9e52-b1aa-4138-80e6-0d25d8f6c128.jpg?v=1786483444"},{"product_id":"harrop-detroit-truetrac-m86-30-spline","title":"Harrop Detroit Truetrac | M86 30 Spline","description":"\u003ch2\u003eHarrop Detroit Truetrac | M86 30 Spline\u003c\/h2\u003e\n\u003cp\u003eHarrop \/ Eaton Truetrac helical-gear limited-slip differential for the exact application below.\u003c\/p\u003e\n\u003ch3\u003eHow the Truetrac works\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGear-driven helical limited-slip design\u003c\/li\u003e\n\u003cli\u003eNo clutch packs or friction plates\u003c\/li\u003e\n\u003cli\u003eAutomatically biases torque toward the wheel with greater available traction\u003c\/li\u003e\n\u003cli\u003eSmooth, quiet operation compared with locking-style differentials\u003c\/li\u003e\n\u003cli\u003eMaintenance-free internal traction mechanism\u003c\/li\u003e\n\u003cli\u003eHarrop lists a 36-month warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eSelected Holden VY–VZ one-tonne Ute\/Crewman and Ford Falcon BA\/BF\/FG XR6 Turbo\/XR8 including FPV variants using the M86 30-spline differential.\u003c\/p\u003e\n\u003cp\u003eCorrect housing, spline count, bearings and axle configuration must be confirmed before installation. Differential bearing preload and backlash must be set correctly.\u003c\/p\u003e\u003ch2\u003eWorkshop Support\u003c\/h2\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eHolden Driveline M86 30SPLINE\u003c\/li\u003e\u003c\/ul\u003e","brand":"Harrop","offers":[{"title":"Default Title","offer_id":43654277824579,"sku":"63-913A707","price":1685.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/Detroit_20Truetrac-1024x1024_6c35b80d-b9cf-4717-8376-3e265588b2da.jpg?v=1786483451"},{"product_id":"harrop-detroit-truetrac-holden-zf-32-spline-ve-vf","title":"Harrop Detroit Truetrac | Holden ZF 32 Spline VE–VF","description":"\u003ch2\u003eHarrop Truetrac | Holden VE–VF ZF | 32 Spline\u003c\/h2\u003e\n\u003cp\u003eHeavy-duty Harrop \/ Eaton Truetrac helical limited-slip differential for Holden VE and VF Commodore ZF rear differential applications.\u003c\/p\u003e\n\u003ch3\u003eManufacturer-confirmed features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Eaton Truetrac helical-gear LSD architecture\u003c\/li\u003e\n\u003cli\u003e210% stronger gear set than Harrop's earlier standard version\u003c\/li\u003e\n\u003cli\u003eLarger side and pinion gears\u003c\/li\u003e\n\u003cli\u003eEight-pinion gear arrangement\u003c\/li\u003e\n\u003cli\u003eGear-driven operation with no clutch packs or friction materials\u003c\/li\u003e\n\u003cli\u003eAutomatic torque biasing\u003c\/li\u003e\n\u003cli\u003eHarrop lists a 36-month warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eHolden Commodore VE and VF, including supported HSV variants. Harrop excludes Gen-F GTS applications.\u003c\/p\u003e\n\u003cp\u003eHarrop product code: \u003cstrong\u003e99-TTRC12192\u003c\/strong\u003e.\u003c\/p\u003e\u003ch2\u003eWorkshop Support\u003c\/h2\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cp\u003eUse the vehicle finder to confirm the exact make, model, chassis and engine application.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eConfirm exact chassis, engine, drivetrain, production year and selected configuration before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Harrop","offers":[{"title":"Default Title","offer_id":43654284509251,"sku":"99-TTRC12192","price":1625.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/Detroit_20Truetrac-1024x1024_8098906c-8fa9-48ad-9ce8-d1626fde46cd.jpg?v=1786483765"},{"product_id":"harrop-truetrac-ford-ranger-px-rear","title":"Harrop Eaton Truetrac | Ford Ranger PX | Rear","description":"\u003ch2\u003eHarrop Eaton Truetrac | Ford Ranger PX | Rear\u003c\/h2\u003e\n\u003cp\u003eHarrop \/ Eaton Truetrac helical-gear limited-slip differential for the exact application below.\u003c\/p\u003e\n\u003ch3\u003eHow the Truetrac works\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGear-driven helical limited-slip design\u003c\/li\u003e\n\u003cli\u003eNo clutch packs or friction plates\u003c\/li\u003e\n\u003cli\u003eAutomatically biases torque toward the wheel with greater available traction\u003c\/li\u003e\n\u003cli\u003eSmooth, quiet operation compared with locking-style differentials\u003c\/li\u003e\n\u003cli\u003eMaintenance-free internal traction mechanism\u003c\/li\u003e\n\u003cli\u003eHarrop lists a 36-month warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eFord Ranger PX rear differential applications covered by Harrop.\u003c\/p\u003e\n\u003cp\u003eCorrect housing, spline count, bearings and axle configuration must be confirmed before installation. Differential bearing preload and backlash must be set correctly.\u003c\/p\u003e\u003ch2\u003eWorkshop Support\u003c\/h2\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eFord Ranger Px Px2 Px Px2\u003c\/li\u003e\u003c\/ul\u003e","brand":"Harrop","offers":[{"title":"Default Title","offer_id":43686746521667,"sku":"99-TTRC12851","price":1725.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/Detroit_20Truetrac-1024x1024_c2c0ac55-f47a-425f-b915-a5361196aab8.jpg?v=1787085352"},{"product_id":"harrop-truetrac-ford-8-28-spline","title":"Harrop Eaton Truetrac | Ford 8\" | 28 Spline","description":"\u003ch2\u003eHarrop Eaton Truetrac | Ford 8\" | 28 Spline\u003c\/h2\u003e\n\u003cp\u003eHarrop \/ Eaton Truetrac helical-gear limited-slip differential for the exact application below.\u003c\/p\u003e\n\u003ch3\u003eHow the Truetrac works\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGear-driven helical limited-slip design\u003c\/li\u003e\n\u003cli\u003eNo clutch packs or friction plates\u003c\/li\u003e\n\u003cli\u003eAutomatically biases torque toward the wheel with greater available traction\u003c\/li\u003e\n\u003cli\u003eSmooth, quiet operation compared with locking-style differentials\u003c\/li\u003e\n\u003cli\u003eMaintenance-free internal traction mechanism\u003c\/li\u003e\n\u003cli\u003eHarrop lists a 36-month warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eFord\/Lincoln\/Mercury models produced 1963–1971 with Ford 8\" housing and 28-spline axles.\u003c\/p\u003e\n\u003cp\u003eCorrect housing, spline count, bearings and axle configuration must be confirmed before installation. Differential bearing preload and backlash must be set correctly.\u003c\/p\u003e\u003ch2\u003eWorkshop Support\u003c\/h2\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eFord Driveline Ford8 28SPLINE\u003c\/li\u003e\u003c\/ul\u003e","brand":"Harrop","offers":[{"title":"Default Title","offer_id":43686741442627,"sku":"63-912A616","price":1410.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/Detroit_20Truetrac-1024x1024_fce5ff33-01f8-41be-9d7b-6afff9d1dac5.jpg?v=1787085784"},{"product_id":"harrop-truetrac-ford-9-28-spline","title":"Harrop Eaton Truetrac | Ford 9\" | 28 Spline","description":"\u003ch2\u003eHarrop Eaton Truetrac | Ford 9\" | 28 Spline\u003c\/h2\u003e\n\u003cp\u003eHarrop \/ Eaton Truetrac helical-gear limited-slip differential for the exact application below.\u003c\/p\u003e\n\u003ch3\u003eHow the Truetrac works\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGear-driven helical limited-slip design\u003c\/li\u003e\n\u003cli\u003eNo clutch packs or friction plates\u003c\/li\u003e\n\u003cli\u003eAutomatically biases torque toward the wheel with greater available traction\u003c\/li\u003e\n\u003cli\u003eSmooth, quiet operation compared with locking-style differentials\u003c\/li\u003e\n\u003cli\u003eMaintenance-free internal traction mechanism\u003c\/li\u003e\n\u003cli\u003eHarrop lists a 36-month warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eVehicles fitted with a Ford 9\" differential housing and 28-spline axles.\u003c\/p\u003e\n\u003cp\u003eCorrect housing, spline count, bearings and axle configuration must be confirmed before installation. Differential bearing preload and backlash must be set correctly.\u003c\/p\u003e\u003ch2\u003eWorkshop Support\u003c\/h2\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eFord Driveline Ford9 28SPLINE\u003c\/li\u003e\u003c\/ul\u003e","brand":"Harrop","offers":[{"title":"Default Title","offer_id":43686741639235,"sku":"63-912A587","price":1185.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/Detroit_20Truetrac-1024x1024_1ceb1647-dc1d-486e-bc75-dc3b9b91725f.jpg?v=1787085790"},{"product_id":"harrop-truetrac-ford-9-31-spline","title":"Harrop Eaton Truetrac | Ford 9\" | 31 Spline","description":"\u003ch2\u003eHarrop Eaton Truetrac | Ford 9\" | 31 Spline\u003c\/h2\u003e\n\u003cp\u003eHarrop \/ Eaton Truetrac helical-gear limited-slip differential for the exact application below.\u003c\/p\u003e\n\u003ch3\u003eHow the Truetrac works\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGear-driven helical limited-slip design\u003c\/li\u003e\n\u003cli\u003eNo clutch packs or friction plates\u003c\/li\u003e\n\u003cli\u003eAutomatically biases torque toward the wheel with greater available traction\u003c\/li\u003e\n\u003cli\u003eSmooth, quiet operation compared with locking-style differentials\u003c\/li\u003e\n\u003cli\u003eMaintenance-free internal traction mechanism\u003c\/li\u003e\n\u003cli\u003eHarrop lists a 36-month warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eVehicles fitted with a Ford 9\" differential housing and 31-spline axles.\u003c\/p\u003e\n\u003cp\u003eCorrect housing, spline count, bearings and axle configuration must be confirmed before installation. Differential bearing preload and backlash must be set correctly.\u003c\/p\u003e\u003ch2\u003eWorkshop Support\u003c\/h2\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eFord Driveline Ford9 31SPLINE\u003c\/li\u003e\u003c\/ul\u003e","brand":"Harrop","offers":[{"title":"Default Title","offer_id":43686741803075,"sku":"63-913A586","price":1185.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/Detroit_20Truetrac-1024x1024_0a77f44d-7416-4800-a652-896f2e7489aa.jpg?v=1787085796"},{"product_id":"harrop-truetrac-ford-9-35-spline","title":"Harrop Eaton Truetrac | Ford 9\" | 35 Spline","description":"\u003ch2\u003eHarrop Eaton Truetrac | Ford 9\" | 35 Spline\u003c\/h2\u003e\n\u003cp\u003eHarrop \/ Eaton Truetrac helical-gear limited-slip differential for the exact application below.\u003c\/p\u003e\n\u003ch3\u003eHow the Truetrac works\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGear-driven helical limited-slip design\u003c\/li\u003e\n\u003cli\u003eNo clutch packs or friction plates\u003c\/li\u003e\n\u003cli\u003eAutomatically biases torque toward the wheel with greater available traction\u003c\/li\u003e\n\u003cli\u003eSmooth, quiet operation compared with locking-style differentials\u003c\/li\u003e\n\u003cli\u003eMaintenance-free internal traction mechanism\u003c\/li\u003e\n\u003cli\u003eHarrop lists a 36-month warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eVehicles fitted with a Ford 9\" differential housing and 35-spline axles.\u003c\/p\u003e\n\u003cp\u003eCorrect housing, spline count, bearings and axle configuration must be confirmed before installation. Differential bearing preload and backlash must be set correctly.\u003c\/p\u003e\u003ch2\u003eWorkshop Support\u003c\/h2\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eFord Driveline Ford9 35SPLINE\u003c\/li\u003e\u003c\/ul\u003e","brand":"Harrop","offers":[{"title":"Default Title","offer_id":43686741835843,"sku":"63-914A690","price":1422.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/Detroit_20Truetrac-1024x1024_6fb38feb-12ca-4ed1-aa57-03015e27b28f.jpg?v=1787085802"},{"product_id":"harrop-truetrac-holden-banjo-10-spline","title":"Harrop Eaton Truetrac | Holden Banjo | 10 Spline","description":"\u003ch2\u003eHarrop Eaton Truetrac | Holden Banjo | 10 Spline\u003c\/h2\u003e\n\u003cp\u003eHarrop \/ Eaton Truetrac helical-gear limited-slip differential for the exact application below.\u003c\/p\u003e\n\u003ch3\u003eHow the Truetrac works\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGear-driven helical limited-slip design\u003c\/li\u003e\n\u003cli\u003eNo clutch packs or friction plates\u003c\/li\u003e\n\u003cli\u003eAutomatically biases torque toward the wheel with greater available traction\u003c\/li\u003e\n\u003cli\u003eSmooth, quiet operation compared with locking-style differentials\u003c\/li\u003e\n\u003cli\u003eMaintenance-free internal traction mechanism\u003c\/li\u003e\n\u003cli\u003eHarrop lists a 36-month warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eEarly Holden applications with \"Banjo\" style housing and 10-spline axles.\u003c\/p\u003e\n\u003cp\u003eCorrect housing, spline count, bearings and axle configuration must be confirmed before installation. Differential bearing preload and backlash must be set correctly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHarrop note:\u003c\/strong\u003e Banjo-style housings may require modification. 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Some live-axle applications can exhibit light trailing\/cruising chatter without affecting durability.\u003c\/p\u003e\u003ch2\u003eWorkshop Support\u003c\/h2\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eHolden Driveline Banjo 26SPLINE\u003c\/li\u003e\u003c\/ul\u003e","brand":"Harrop","offers":[{"title":"Default Title","offer_id":43686742655043,"sku":"99-TTRC11601","price":2195.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/Detroit_20Truetrac-1024x1024_779853c8-f993-45b5-908b-48fbc0ddbe57.jpg?v=1787085826"},{"product_id":"harrop-truetrac-holden-banjo-28-spline","title":"Harrop Eaton Truetrac | Holden Banjo | 28 Spline","description":"\u003ch2\u003eHarrop Eaton Truetrac | Holden Banjo | 28 Spline\u003c\/h2\u003e\n\u003cp\u003eHarrop \/ Eaton Truetrac helical-gear limited-slip differential for the exact application below.\u003c\/p\u003e\n\u003ch3\u003eHow the Truetrac works\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGear-driven helical limited-slip design\u003c\/li\u003e\n\u003cli\u003eNo clutch packs or friction plates\u003c\/li\u003e\n\u003cli\u003eAutomatically biases torque toward the wheel with greater available traction\u003c\/li\u003e\n\u003cli\u003eSmooth, quiet operation compared with locking-style differentials\u003c\/li\u003e\n\u003cli\u003eMaintenance-free internal traction mechanism\u003c\/li\u003e\n\u003cli\u003eHarrop lists a 36-month warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eEarly Holden applications with \"Banjo\" style housing and 28-spline axles.\u003c\/p\u003e\n\u003cp\u003eCorrect housing, spline count, bearings and axle configuration must be confirmed before installation. Differential bearing preload and backlash must be set correctly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHarrop note:\u003c\/strong\u003e Banjo-style housings may require modification. Some live-axle applications can exhibit light trailing\/cruising chatter without affecting durability.\u003c\/p\u003e\u003ch2\u003eWorkshop Support\u003c\/h2\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eHolden Driveline Banjo 28SPLINE\u003c\/li\u003e\u003c\/ul\u003e","brand":"Harrop","offers":[{"title":"Default Title","offer_id":43686742917187,"sku":"99-TTRC11400","price":1695.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/Detroit_20Truetrac-1024x1024_ef05c81c-4569-4d6d-a686-bfd4bff27e4b.jpg?v=1787085832"},{"product_id":"harrop-truetrac-holden-salisbury-31-spline","title":"Harrop Eaton Truetrac | Holden Salisbury | 31 Spline","description":"\u003ch2\u003eHarrop Eaton Truetrac | Holden Salisbury | 31 Spline\u003c\/h2\u003e\n\u003cp\u003eHarrop \/ Eaton Truetrac helical-gear limited-slip differential for the exact application below.\u003c\/p\u003e\n\u003ch3\u003eHow the Truetrac works\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGear-driven helical limited-slip design\u003c\/li\u003e\n\u003cli\u003eNo clutch packs or friction plates\u003c\/li\u003e\n\u003cli\u003eAutomatically biases torque toward the wheel with greater available traction\u003c\/li\u003e\n\u003cli\u003eSmooth, quiet operation compared with locking-style differentials\u003c\/li\u003e\n\u003cli\u003eMaintenance-free internal traction mechanism\u003c\/li\u003e\n\u003cli\u003eHarrop lists a 36-month warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eEarly Holden applications with 10-bolt Salisbury housing and upgraded aftermarket 31-spline axles.\u003c\/p\u003e\n\u003cp\u003eCorrect housing, spline count, bearings and axle configuration must be confirmed before installation. Differential bearing preload and backlash must be set correctly.\u003c\/p\u003e\u003ch2\u003eWorkshop Support\u003c\/h2\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eHolden Driveline Salisbury 31SPLINE\u003c\/li\u003e\u003c\/ul\u003e","brand":"Harrop","offers":[{"title":"Default Title","offer_id":43686743605315,"sku":"99-TTRC10368-31SPL","price":1550.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/Detroit_20Truetrac-1024x1024_c0edfe84-e5a7-4ac3-8f5f-931d0d67396d.jpg?v=1787085837"},{"product_id":"harrop-truetrac-holden-m78-28-spline","title":"Harrop Eaton Truetrac | Holden M78 | 28 Spline","description":"\u003ch2\u003eHarrop Eaton Truetrac | Holden M78 | 28 Spline\u003c\/h2\u003e\n\u003cp\u003eHarrop \/ Eaton Truetrac helical-gear limited-slip differential for the exact application below.\u003c\/p\u003e\n\u003ch3\u003eHow the Truetrac works\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGear-driven helical limited-slip design\u003c\/li\u003e\n\u003cli\u003eNo clutch packs or friction plates\u003c\/li\u003e\n\u003cli\u003eAutomatically biases torque toward the wheel with greater available traction\u003c\/li\u003e\n\u003cli\u003eSmooth, quiet operation compared with locking-style differentials\u003c\/li\u003e\n\u003cli\u003eMaintenance-free internal traction mechanism\u003c\/li\u003e\n\u003cli\u003eHarrop lists a 36-month warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eHolden Commodore VL–VT live-axle applications and Nissan Skyline R31 using the Borg Warner M78 28-spline differential.\u003c\/p\u003e\n\u003cp\u003eCorrect housing, spline count, bearings and axle configuration must be confirmed before installation. Differential bearing preload and backlash must be set correctly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHarrop note:\u003c\/strong\u003e M78\/Borg Warner live-axle installations may require pinion machining; leaf-spring applications can transmit some operating noise.\u003c\/p\u003e\u003ch2\u003eWorkshop Support\u003c\/h2\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eHolden Driveline M78 28SPLINE\u003c\/li\u003e\u003c\/ul\u003e","brand":"Harrop","offers":[{"title":"Default Title","offer_id":43686743900227,"sku":"99-TTRC9837-00","price":1415.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/Detroit_20Truetrac-1024x1024_808abf61-3ebd-4ada-b7b1-ddaf349d5e55.jpg?v=1787085843"},{"product_id":"harrop-truetrac-holden-m78-31-spline","title":"Harrop Eaton Truetrac | Holden M78 | 31 Spline","description":"\u003ch2\u003eHarrop Eaton Truetrac | Holden M78 | 31 Spline\u003c\/h2\u003e\n\u003cp\u003eHarrop \/ Eaton Truetrac helical-gear limited-slip differential for the exact application below.\u003c\/p\u003e\n\u003ch3\u003eHow the Truetrac works\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGear-driven helical limited-slip design\u003c\/li\u003e\n\u003cli\u003eNo clutch packs or friction plates\u003c\/li\u003e\n\u003cli\u003eAutomatically biases torque toward the wheel with greater available traction\u003c\/li\u003e\n\u003cli\u003eSmooth, quiet operation compared with locking-style differentials\u003c\/li\u003e\n\u003cli\u003eMaintenance-free internal traction mechanism\u003c\/li\u003e\n\u003cli\u003eHarrop lists a 36-month warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eHolden Commodore VL–VT live-axle applications and Nissan Skyline R31 upgraded to 31-spline axles.\u003c\/p\u003e\n\u003cp\u003eCorrect housing, spline count, bearings and axle configuration must be confirmed before installation. 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Contact us before ordering if you need help confirming suitability or planning the complete upgrade package.\u003c\/p\u003e\u003ch3\u003eApplication Checks\u003c\/h3\u003e\u003cp\u003eConfirm the exact vehicle or engine application, dimensions, interfaces and any supporting hardware required before ordering. 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