Milwaukee Twins Axle Adjusters The Milwaukee Twins Chrome Rear Wheel Adjuster Kit contains two steel adjusters, two chrome plated end plates, chrome plated hex nuts, and chrome plated tapered lock nuts. A direct replacement for the OEM part. Fits models with a 3/4 rear axle. Features: Chrome plated Steel construction Sold in pairs Replaces OEM 41570-77 / 47554-73