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The Whiteline differential mount insert is a precision bushing designed to work inside the original factory rear differential mount to help maintain pinion angle and improve gear engagement. By fitting within the factory bushing rather than replacing it, the insert reduces initial torque loss and helps deliver more driveline power to the wheels. Its synthetic elastomer resists oil, grease, ozone and weathering and uses a specially bonded design for the high‑load demands of differential mounts.
Whiteline 04-06 Pontiac GTO / Holden Commodore VX-VZ Traction Control Rear Differential Mount Insert
