Noisy When Coasting. GMC Truck TopKick C-Series (Conventional) C4/C5 2004

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2004 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Driveline/Axle 🢒 Rear Drive Axle 🢒 Noisy When Coasting

Problem

Action

Rear axle noises heard on drive will usually be heard also on coasting, although not as loud.

Adjust or replace the differential drive pinion gear and the ring gear set.

•	For Dana® Model 286 axle, refer to Pinion Depth Adjustment or Drive Pinion and Ring Gear Replacement

•	For Spicer Eaton axles, call 1-800-TCM-HELP

•	For Meritor axles, call 1-800-535-5560

Differential drive pinion gear and ring gear too tight audible when slowing down and disappears when driving.

Adjust the differential drive pinion gear to the ring gear backlash.

•	For Dana® Model 286 axle, refer to Backlash Adjustment

•	For Spicer Eaton axles, call 1-800-TCM-HELP

•	For Meritor axles, call 1-800-535-5560