Yukon Ford 8.8" Rear Master Overhaul Kit - 2015+ F-150 & Mustang IRS
YUKYK F8.8-D
This Ford 8.8" rear master overhaul kit is designed for 2015 and newer Ford Super 8.8 rear axle applications used in the F-150 and IRS Mustang platforms. This kit includes Timken bearings and races along with the preload hardware and shim components needed to properly rebuild and set up the newer-generation Ford 8.8" rear differential.
The 2015+ Ford Super 8.8 platform is used in both truck and high-performance IRS applications, making it important to use application-specific rebuild components during gear installations or differential service. Mustang IRS stub axle seals and needle bearings are sold separately because those components vary by IRS configuration.
Includes:
- Carrier bearings and races
- Pinion bearings and races
- Pinion seal
- Complete shim kit
- Ring gear bolts
- Pinion nut
- Crush sleeve
- Thread locker
- Gear marking compound with brush
- Differential gasket and sealing components
Note:
- Mustang IRS stub axle seals and needle bearings sold separately
- Fits 12-bolt cover Ford Super 8.8" applications only
Specifications
- Fits 2015+ Ford Super 8.8" rear differentials
- Rear axle applications only
- Fits 12-bolt cover housings
- Timken bearings and races included
- Includes preload and shim setup components
- Includes ring gear bolts and pinion hardware
- Compatible with solid axle and IRS applications depending on vehicle
- Designed for complete differential rebuilds
Fitment
|
Make |
Model |
Year Range |
|
Ford |
F-150 |
2015–2023 |
|
Ford |
Mustang |
2015–2023 |
Fitment Notes:
- Fits Ford Super 8.8" rear differentials only
- Compatible with 2015+ F-150 solid rear axle applications
- Compatible with 2015+ Mustang IRS rear differential applications
- Mustang IRS stub axle seals and needle bearings sold separately
- Verify axle type and differential configuration before ordering
Tech Insight
The newer Ford Super 8.8 differential platform features updated housing, bearing, and cover designs compared to earlier Ford 8.8 axles. Proper setup during gear installation or overhaul is critical because incorrect backlash or preload can quickly lead to gear noise, overheating, and premature bearing wear.
In Mustang IRS applications, additional stub axle bearings and seals are located within the independent suspension assembly and are serviced separately from the differential itself. F-150 applications use a more traditional solid rear axle configuration, but both platforms rely on precise pinion depth and preload settings to maintain long-term ring and pinion durability under towing, performance driving, or oversized tire loads.
