Yukon Gear & Axle · New
Yukon Gear Positraction internals For 8in and 9in Ford w/ 31 Spline Axles / in a 4-Pinion Design
MPN YPKF9-P-31-4 · Store SKU yukYPKF9-P-31-4
Supplier stock checked 11/7/2026, 3:53:26 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
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Product details
The Yukon positraction internals are made for Ford 8"/9" with 31 Spline axles, 4-pinion design. (Part number YPKF9-P-31-4) Yukon Gear & Axle spider gear kits feature higher-quality materials and better manufacturing techniques than OEM to ensure a longer-lasting spider gear set. Kit delivers everything needed for a complete and proper spider gear set replacement. Yukon Gear & Axle spider gear kits feature higher quality materials and better manufacturing techniques than OEM to ensure a longer lasting spider gear set. Kit delivers everything needed for a complete and proper spider gear set replacement. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. Yukon Positraction internals for 8" & 9" with 31spl axles, in a 4-pinion design Yukon Positraction internals for 8in./9in. with 31spl axles; in a 4-pinion desig
Manufacturer fitment & guides
Check YPKF9-P-31-4 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
