2008.5 Quad Cab, manual. Finally happened, closing the sliding rear window and the "locking tab" broke off. Looked at the window and there are two screws that can remove and install a replacement locking arrangement. Teach me to spray the track with silicone or something before this happens again! Can still lock it but need to put the broken piece in drink holder so it will not be lost. More of a convenience hinderance than operational one. Going to try the dealership but wondering if anyone found a good replacement or any luck with the dealership.