CPC Borg Warner 78 Billet Diff Hat
CPC Borg Warner 78 Billet Diff Hat adds bearing-cap support, additional oil capacity and serviceable drain/fill hardware for high-load driveline use.
Fitment / application
Australian vehicle applications using the Borg Warner 78 nine-bolt differential. Confirm sway-bar and chassis clearance on modified vehicles.
Product construction and design
- 6061-T6 billet aluminium weighing under 2 kg
- Two swivel load bolts support the bearing caps
- Approximately 300 mL additional oil capacity
- Clearance for standard and common replacement sway bars
Package and installation details
- Diff hat, gasket and stainless-steel mounting bolts
- Speedflow oil drain and fill plugs
Selection and workshop support
Built by Boost & Tune is an authorised CPC dealer and can help confirm the configuration, fitment, finish, included hardware and installation requirements before production. Installation, fabrication and calibration support are available from our Melbourne workshop.
Supply
CPC products are highly configurable and built to the customer's specification. If the selected product is not already on the shelf, allow approximately 2–8 weeks; actual lead time depends on material supply, machining requirements and configuration complexity.
Supplier
CPC Manufacturing
Product System
- Transmission & Driveline
Vehicle Fitment
- Holden Driveline Borg Warner 78 Housing
- Holden Driveline M78 28Spline
- Holden Driveline M78 31Spline
Confirm chassis, engine, drivetrain and production-year compatibility before ordering.
Supplier Part Number
CPC-BW78-DIFF-HAT
Built by Boost & Tune Support
BBT can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.