MasterLine forged steel axles are the perfect economical street strip axle. Made to the exact length required, and feature hobbed involute splines to match stock differentials, posi-tractions, and aftermarket spools (28, 30, 31, and 35 spline). To accommodate the street market, these axles have a 45mm I.D. bearing journal and thicker flange that can withstand the higher weight and harsher surface conditions. They and are in-house induction heat treated to provide high tensional strength.  They can also be drilled with up to 3 hole patterns (at no additional charge) to match the most popular 5 on 4-1/2", 5 on 4-3/4", and 5 on 5" wheel patterns. The holes are tapped to accommodate 1/2"-20 or 5/8-18" wheel studs. Download service bulletin # 0077 axle order form to help gather your dimensions. Pricing is per pair. Bearings sold separately.