Yukon Positraction internals for 8- and 9-inch Ford carriers with 31-spline axles are offered in a four-pinion design to replace TracLoc-style internals. Yukon specifies higher-quality materials and manufacturing than OEM to improve service life. The kit contains two side gears, four pinion gears, cross pin shaft, roll pin and spider gear thrust washers and is intended for TracLoc posi units with 31 splines.
Yukon Gear Positraction internals For 8in and 9in Ford w/ 31 Spline Axles / in a 4-Pinion Design