Yukon Gear & Axle · New
Yukon Gear 79-93 Mustang Axle Kit / 31 Spline / 4 Lug Axles w/ Duragrip Positraction
MPN YA FMUST-1-31 · Store SKU yukYA FMUST-1-31
Supplier stock checked 11/8/2026, 3:12:27 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
79-93 Mustang 31 Spline 4-LUG C/clip axle kit w/ Dura Grip Positraction, two axles, axle bearings & seals, carrier bearings & races and Supershim kit. (Part number YA FMUST-1-31) Yukon Gear & Axle offers an extensive line of general replacement and high-performance axles for passenger car, truck and SUV applications. High-quality alloys and the latest in heat-treating technologies provide a stronger-than-stock axle for off-road, on the street, or at the track. Yukon Gear & Axle offers an extensive line of general replacement and high-performance axles for passenger car, truck and SUV applications. High quality alloys and the latest in heat-treating technologies provide a stronger-than-stock axle for off-road, on the street, or at the track. 79-93 Mustang 31 spline 4-LUG C/clip axle kit w/ Dura Grip Positraction, two axles, axle bearings & seals, carrier bearings & races and Supershim kit. 79-93 Mustang 31 spline 4-LUG C/clip axle kit w/Dura Grip Positraction; two axles; axle bearings/seals; carrier bearings/races and Supershim kit. Yukon '79-'93 Mustang Axle kit, 31 Spline, 4 Lug Axles w/ DuraGrip Positraction Yukon 79-93 Mustang Axle kit; 31 Spline; 4 Lug Axles w/DuraGrip Positraction
Manufacturer fitment & guides
Check YA FMUST-1-31 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y