This is the complete gear kit for the T-90 transmission that is used on the 4 cylinder engines. The kit includes the main shaft, input shaft (18 tooth), 1ST, 2ND, Synchronizer assembly, cluster gear (33 tooth), cluster shaft, reverse idler, reverse idler shaft, front bearings, rear bearings, small parts kit and a gasket set. All you need is your case and top shifter.
Note on 1966 and up CJ5 and CJ6 models check the cluster gear count and the input tooth count.
1 Required per Jeep.