Alloy USA High Strength Rear Axle Shaft - 21128 - ALY21128
99-04 Grand Cherokee WJ;Dana 44 rear axle;30 spline;Rear passenger side ;Not for use with Hydralok Differential; California Residents: WARNING Dont just replace your axle shafts, upgrade them. For less than the cost of an original replacement axle shaft you can upgrade to an Alloy USA performance shaft. Our axles are made from 4140 grade steel. Each axle is heat-treated and induction hardened to have twice the tensile strength than stock and is up to 40% stronger. We use the latest cold spline rolling technology to produce splines that are stronger than traditional cut splines. Each shaft is backed by our exclusive 10-year warranty.