Alloy USA - Axle Shaft Rear, Jeep Wrangler (JK) 07-10, Dana 44, LH/RH, 30-Spline Alloy USA uses high strength 4140 Chromoly in all its Jeep® axles. Our axles are heat-treated twice and induction hardened to produce these heavy-duty axles that are up to 35% stronger than stock 1040 axles. Alloy USA™ uses the latest cold spline rolling technology, to produce splines that are stronger than traditional cut splines. Our shafts are covered by an exclusive 10-year warranty

O-Ring Fits: Jeep Grand Cherokee (2005-2010); Mounting Axle Housing Tube to Axle Housing. Jeep Commander (2006-2010); Mounting Axle Housing Tube to Axle Housing.