Yukon Gear Axle Bearing & Seal Kit For 10.5in GM 14 Bolt Truck
Gear oil streaked across the inside of a rear wheel, brake shoes soaked and grabbing, or a low growl from one corner of a 3/4-ton or 1-ton Chevy or GMC usually comes back to the same place: the hub bearings and hub seal on a 10.5 in. GM 14-bolt full-float axle. The Yukon Gear & Axle AK GM14T is the wheel-end kit for that job. It contains a new inner bearing and race, a new outer bearing and race, and a new axle seal, enough to service one side. Doing both sides of the truck takes two kits.
The 10.5 in. 14-bolt is a full-floating axle. Each rear hub turns on a pair of tapered roller bearings that sit on a spindle at the end of the axle tube, and the hub, not the axle shaft, carries the weight of the truck and whatever is in the bed or on the hitch. The axle shaft simply bolts to the outside of the hub and delivers torque. Gear oil from the center section runs out along the tube to lubricate those bearings, and the seal at the back of the hub keeps it from reaching the brakes. Bearing preload is set by an adjusting nut on the spindle, so a worn bearing or a nut that has backed off shows up as play in the wheel.
Raise both rear wheels, then rock each tire top to bottom. Any clunk or movement at the hub means end play. Spin each wheel slowly and listen for a rough or gritty sound, and compare the two sides. A pinion or carrier bearing inside the center section can sound much like a hub bearing, so if both hubs are tight and quiet, open the cover instead. In that case a full center section kit such as the ZK GM14T-C 14-bolt master overhaul kit or, for 1988-and-older axles, the ZK GM14T-A kit is the right part. If the noise disappears when you coast in neutral, the transmission is a suspect too; our 4L80E noise diagnosis guide covers the common heavy-duty GM unit.
Yukon lists the AK GM14T for the GM 10.5 in. 14-bolt truck axle. The published application list runs from 1970s C20, K20, C30 and K30 pickups and Suburbans, through 1989-2000 C/K 2500 and 3500 trucks and 1996-2012 Express and Savana 2500 and 3500 vans, to 3/4-ton Yukon XL models. The 14-bolt had a long production run, and many 2001-and-later 2500HD and 3500 pickups use the AAM 11.5 in. axle instead, which takes the AK GM11.5 kit. GM also built a smaller semi-float 14-bolt for half-ton trucks that uses C-clip axles and a different bearing; this kit is only for the full-float 10.5. Count 14 cover bolts, confirm the axle shaft bolts to the hub, and compare the numbers on your old races. Not sure? Send us the year and VIN.
If an axle shaft flange or spline is worn while you are in there, a 1541H alloy 30-spline 14-bolt axle shaft is the matching upgrade.
| Brand | Yukon Gear & Axle |
| Part number | AK GM14T |
| Fits | Yukon Gear Axle Bearing & Seal Kit For 10.5in GM 14 Bolt Truck |
| Type | Bearings |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. Each kit has one inner bearing and race, one outer bearing and race, and one axle seal, which services one side. Order two kits for both hubs.
Most 2001-and-later 2500HD and 3500 pickups have the AAM 11.5 in. axle, which takes the AK GM11.5 kit. Vans and some 3/4-ton models kept the 10.5 in. 14-bolt longer. Count the cover bolts, check the ring gear size on the axle tag, or send us the VIN.
No. It is for the full-float 10.5 in. 14-bolt, where the axle shaft bolts to the outside of the hub. The half-ton semi-float 14-bolt uses C-clip axles and a different bearing.
You need the correct spindle nut socket for your axle, a race driver and a seal driver, plus a torque wrench. Follow the factory adjustment procedure for your year.
75W-90 gear oil is the common choice; many owners who tow heavy run 75W-140. Top off the axle after both wheel ends are back together.
