
Specifications
- Brand
- Yukon Gear & Axle
- Part #
- YPKF9-P-31-4
- UPC
- 883584160267

Yukon Gear Positraction internals For 8in and 9in Ford w/ 31 Spline Axles / in a 4-Pinion Design
$348.89
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Yukon Gear Positraction spider gear kit for Ford 8in and 9in differentials with 31 spline axles. Features a 4-pinion design for improved durability.
Key Features
- Fits Ford 8in and 9in differentials with 31 spline axles and Trac Loc Positraction.
- Includes two side gears, four pinion gears, cross pin shaft, roll pin, and spider gear thrust washers.
- Features a 4-pinion design for improved strength and durability.
- Manufactured using higher quality materials and techniques than OEM for a longer-lasting spider gear set.
- Designed for a complete and proper spider gear set replacement.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
This Yukon Gear & Axle kit gives you everything you need to rebuild the positraction internals for your Ford 8-inch or 9-inch differential, specifically designed for vehicles with 31-spline axles. You'll get two side gears, four pinion gears, a cross pin shaft, a roll pin, and the spider gear thrust washers. This kit is built with higher quality materials and manufacturing techniques than what you'd find in OEM parts, aiming for a longer-lasting spider gear set.
The 4-pinion design in this kit is a notable upgrade over some stock setups, offering increased strength and reliability for your drivetrain. This means it's well-suited for a range of Ford vehicles, including classics like the Bronco, F-100, and Mustang, as well as Econoline vans. If you're looking to ensure your limited-slip differential is performing at its best and can handle the demands of your vehicle, this Yukon kit is a solid option.
Specifications
- Brand
- Yukon Gear & Axle
- Manufacturer Part #
- YPKF9-P-31-4
- UPC
- 883584160267
Frequently Asked Questions
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Yukon Gear Positraction internals For 8in and 9in Ford w/ 31 Spline Axles / in a 4-Pinion Design
