Yukon Gear Master Overhaul Kit For Dana S110

Complete Rebuild Kit: Yukon YK DS110 for Dana S110, S111, S130 and S132 Differentials

The YK DS110 master overhaul kit from Yukon Gear and Axle delivers every component necessary to fully rebuild a Dana Spicer S110, S111, S130, or S132 differential. This comprehensive YK DS110 kit uses Timken bearings and races throughout, combined with high-quality seals and precision hardware. Whether you are refreshing your Jeep Wrangler JL or Gladiator JT rear differential or installing a new ring and pinion gear set, the YK DS110 is the complete rebuild kit you need to get the job done right.

Features and Benefits

• Covers all Dana S110, S111, S130, and S132 differential variations in a single kit
• Industry-leading Timken carrier bearings and pinion bearings for maximum load capacity and longevity
• High-quality OEM-spec seals prevent fluid contamination and leaks
• Complete shim set for precise pinion depth and carrier preload adjustment
• All ring gear bolts, pinion nut, crush sleeve, and fastener hardware included
• Thread locker, gear marking compound, and brush included for professional installation
• Backed by a 1-year limited manufacturer warranty against defects
• Designed specifically for 2018-and-newer Jeep Wrangler JL and 2020-and-newer Gladiator JT applications

Vehicle Fitment

Specifications

What Is Included

• Timken carrier bearings and races (pair)
• Timken pinion bearings and races (front and rear)
• Pinion seal
• High-quality differential seals
• Complete shim kit (carrier and pinion depth shims)
• Ring gear bolts
• Pinion nut
• Crush sleeve
• Thread locker
• Gear marking compound with brush
• Silicone gasket maker

Frequently Asked Questions

Which differentials does the YK DS110 fit exactly?
The YK DS110 fits the Dana Spicer S110, S111, S130, and S132 differentials. These are found in 2018-and-newer Jeep Wrangler JL and 2020-and-newer Jeep Gladiator JT vehicles with heavy-duty rear axle options.

Does this kit comply with the Magnuson-Moss Warranty Act?
Yes. Yukon Gear and Axle's 1-year limited warranty is provided in compliance with the Magnuson-Moss Warranty Act. Installing the YK DS110 on your Jeep does not void your factory powertrain warranty when installed correctly and used as intended.

What break-in procedure should I follow after installing the YK DS110?
Avoid sustained high speeds and heavy loads for the first 500 miles. Vary your speed during this period and change the differential fluid after 500 miles to flush out initial break-in particles.

What tools do I need to install this kit?
You will need a bearing press, pinion depth gauge, dial indicator set, torque wrench capable of 200+ ft-lb, bearing puller, seal driver set, and a micrometer. The gear marking compound included in the YK DS110 is also required to verify the gear contact pattern.

Can this kit be used without replacing the ring and pinion?
Yes. If your ring and pinion are in serviceable condition, you can use this kit as a bearing and seal refresh during a differential overhaul without replacing the gears.

What is the torque spec for the ring gear bolts on the S110?
Consult the Dana Spicer service manual or your ring and pinion manufacturer's instructions for the specific torque value. Apply the included thread locker to all ring gear bolts before torquing.

Is this kit compatible with the Dana S110 in Ford Super Duty trucks?
The Dana S110 / S111 is also found in Ford F-450 and F-550 Super Duty trucks. The YK DS110 is designed for both Jeep and Ford applications using these axle codes.

Should I replace the differential fluid after installation?
Yes. Always fill with fresh, manufacturer-specified gear oil after any differential rebuild. Use the correct viscosity and add any required friction modifier if the axle has a limited-slip or locking differential function.

Installation Instructions

1. Drain differential fluid completely and remove the differential cover. Clean all gasket surfaces.
2. Remove and mark carrier bearing caps to ensure reinstallation in original position and orientation.
3. Remove carrier assembly. Press off old carrier bearings and install new Timken carrier bearings.
4. Remove pinion yoke, pinion nut, and old crush sleeve. Drive out pinion and remove pinion bearings.
5. Press in new Timken pinion bearing races. Press new bearings onto the pinion shaft.
6. Determine correct pinion depth shim using a depth gauge. Install shim stack and pinion assembly.
7. Install new crush sleeve. Install pinion yoke and torque pinion nut while monitoring bearing preload (rolling torque).
8. Set carrier side bearing shims for proper backlash and preload. Reinstall marked bearing caps to spec.
9. Apply thread locker to ring gear bolts. Torque to specification in a cross pattern.
10. Verify gear contact pattern with marking compound. Adjust shims until pattern is correct.
11. Install new pinion seal using a seal driver. Apply silicone (included) and reinstall differential cover.
12. Fill with correct gear oil to specification and inspect for leaks.

Prop 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.