extremebrake.com
C1223A-L: Extreme S-Cam Bushing Kit (23-7/8" S-Cam, 2" Bore, Left-Hand)
23-7/8″ S-Cam Length (Fits s-cam length range of 23-7/16″ through 23-7/8″) Extreme Cam Tube Length: 20-3/4″ 2″ Spider Diameter Left-Hand 28 Spline 1.5″ S-Cam Journal For use with Trailers only Bolt-On; no welding required