54-123 Starter Drive 11-T, CW, 19-SPL, AccuSure Positive Engagement For: Delco 40MT, 42MT, 50MT Series DD Starters 54-123Starter Drive11-T, CW, 19-SPL, AccuSure Positive EngagementFor: Delco 40MT, 42MT, 50MT Series DD Starters Dim: 15.9mm ID, 56.5mm Gear OD, 120mm LApplication:General Motors,Butec,Ford,Leece-neville,Remy