Yukon Gear Master Overhaul Kit For GM 98+ 14T Diff

Complete Differential Rebuild Kit for 1998-and-Up GM 10.5in 14-Bolt Truck Rear Axle

The YK GM14T-C from Yukon Gear provides everything required to rebuild the GM 10.5-inch 14-bolt truck rear differential used across a wide range of 1998-and-newer Chevrolet and GMC heavy-duty trucks, vans, and SUVs. The kit includes Timken carrier bearings, Timken inner and outer pinion bearings with matched races, a pilot bearing, complete shim assortment, pinion nut, crush sleeve, pinion seal, thread locker, marking compound, and a differential cover gasket. With YK GM14T-C, every component needed to set correct pinion depth, bearing preload, and ring gear backlash is in a single box.

Features and Benefits

• Application-specific design for the 1998-and-up GM 10.5-inch 14-bolt truck differential
• Timken carrier bearings and races for heavy-duty towing and hauling loads
• Timken inner and outer pinion bearings with precision-matched races
• Pilot bearing included for the GM 14-bolt center-mounted pinion design
• Complete shim assortment for carrier and pinion depth settings
• High-quality pinion seal to prevent gear oil leaks at the yoke
• Crush sleeve included for correct pinion bearing preload on assembly
• Pinion nut for final torque and clamping on the pinion shaft
• Thread locking compound and gear marking compound with brush
• Differential cover gasket included for a clean cover seal
• 1-year manufacturer warranty against defects

Vehicle Fitment

Specifications

What Is Included

• Timken carrier bearings and races (pair)
• Timken inner pinion bearing and race
• Timken outer pinion bearing and race
• Pilot bearing
• High-quality pinion seal
• Complete shim kit (carrier and pinion depth)
• Pinion nut
• Crush sleeve
• Thread locking compound
• Gear marking compound with brush
• Differential cover gasket
• 20-page installation instruction sheet

Frequently Asked Questions

Does the YK GM14T-C include a crush sleeve?
Yes. The YK GM14T-C includes a crush sleeve for the GM 10.5-inch 14-bolt truck differential to correctly establish pinion bearing preload.

What differential does YK GM14T-C fit?
The YK GM14T-C fits the GM 10.5-inch 14-bolt truck rear differential used on 1998-and-newer Chevrolet and GMC 2500 and 3500 trucks, Express and Savana vans, and GMC Yukon XL 2500.

Does YK GM14T-C include a pilot bearing?
Yes. A pilot bearing is included in the YK GM14T-C, which is specific to the GM 14-bolt center-mounted pinion design.

Does YK GM14T-C include a cover gasket?
Yes. A differential cover gasket is included with YK GM14T-C.

Does YK GM14T-C include ring gear bolts?
Thread locking compound for ring gear bolts is included. Confirm the kit contents against your specific application when placing your order.

Are Timken bearings used in YK GM14T-C?
Yes. Both carrier and pinion bearings in YK GM14T-C are Timken-brand for proven heavy-duty truck durability.

What warranty covers YK GM14T-C?
Yukon Gear backs the YK GM14T-C with a 1-year limited warranty against manufacturer defects. Under the Magnuson-Moss Warranty Act, this written warranty gives you specific legal rights, and you may have additional rights that vary by state.

Does YK GM14T-C include installation instructions?
Yes. A 20-page differential installation instruction sheet is included with YK GM14T-C.

Installation Overview

1. Drain gear oil and remove the differential cover; clean all mating surfaces.
2. Remove the carrier assembly; inspect the housing bore and bearing pockets for wear.
3. Press out the existing pinion and remove all old bearings, races, and pilot bearing.
4. Install new Timken pinion bearing races and new pilot bearing into the housing.
5. Set pinion depth using shims from the YK GM14T-C kit and a dial indicator.
6. Install the crush sleeve and new inner pinion bearing; insert pinion into housing.
7. Install the outer pinion bearing and new pinion seal from the kit.
8. Install yoke and tighten the new pinion nut to achieve specified bearing preload.
9. Press new Timken carrier bearings onto the carrier; lower carrier into housing.
10. Adjust carrier shims to achieve factory-specified ring gear backlash.
11. Apply marking compound; verify contact pattern and adjust as needed.
12. Torque ring gear bolts with included thread locker to specification.
13. Install differential cover with the included gasket; refill with appropriate gear oil.

Proposition 65 Warning: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.