Rear Differential Carrier Support Assembly

This heavy-duty crossmember holds the rear differential solidly to the chassis. It keeps the pinion angle correct, aligns the driveshaft and half-shafts, and filters vibration through its bushings. Built from high-strength steel with dampening inserts, it delivers quiet, smooth power transfer for daily driving and towing.

Why you need it

A precise differential mount is vital for traction, smooth gear shifts, and long life of CV joints, U-joints, and axle seals. It prevents unwanted movement of the final drive under load and keeps drivetrain geometry factory-correct.

How it works

The carrier bolts to the subframe and cradles the differential case. Rubber or hydraulic bushings absorb torque reactions and road shocks, cutting NVH while maintaining rigid support during acceleration and braking.

When it fails ⚠️

Expect clunks on takeoff or shifting, judder on acceleration, driveline vibration, and whining from misalignment. Severe wear can crack mounts, tear bushings, leak seals, and damage driveshafts. Rusted beams or sagging bushings are red flags.

Pro tips for replacement ✅

Choose OEM-grade steel, anti-corrosion coating, and pre-pressed bushings. Replace hardware, torque to spec on a loaded suspension, verify pinion angle, and road-test for noise and vibration.

Compatibility

• Qx56