Yukon Gear Rear 4340 Chrome-Moly Axle For Chrysler 10.5in/11.5in Rear 36.1in-40.1in Length 38 Spline4340 Chrome Moly axle shaft for Chrysler 10. 5in. 11. 5in. rear. This is a cut to length axle which fits 36. 1in. to 40. 1in. lengths with 38 splines. Yukon 4340 Chrome Moly alloy axles offer a strength increase over stock while retaining a low cost. Yukon 4340 Chrome Moly alloy rear axles come with a limited lifetime warranty against manufacturing defects. The factory spindles will need to be machined in order to accept these axles. This Part Fits: