Symptoms
Play at the top and bottom of the tire, a growl that changes as you turn, or grease and water inside the hub after deep water.
The fix, step by step
- Lift and support the front, then remove the wheel, the brake and the locking hub.
- Remove the spindle nuts and slide the hub off.
- Clean everything, inspect the races, and replace the bearings, races and hub seal as a set if anything is pitted.
- Pack the new bearings with grease, refit, set the preload per the shop manual and fit a new spindle seal while you're in there.
Tools & part numbers
- Spindle-nut socket
- bearing race driver
- grease packer
- torque wrench
- shop manual
Where to buy the parts
GM Dana 44 and Corporate 10-bolt wheel bearing kit, Timken (per side)Offroad Design ↗Amazon ↗
GM Dana 44 and Corporate 10-bolt spindle seal and bearing kit, all years (per side)Offroad Design ↗Amazon ↗
Hunting a used or discontinued part? Search eBay Motors for Chevrolet K5 Blazer (1st generation) parts →
Rated for a competent home mechanic with a decent tool kit. Confirm torque figures, fluids and procedures against the factory service manual for your VIN, support the truck on stands rather than a jack, and work at your own risk (disclaimer). Some parts links are affiliate links, which pay us a small commission at no cost to you.