Dodge Ram Diesel NV5600 6 Speed Bearing Kit with Synchro Rings BK492WS 1-New NV5600 6 Speed Transmission Bearing Kit with synchronizer rings 2001-upDodge Ram 2500 / 3500 3/4 and 1 ton trucks with cummins diesel engine Part Number BK492WSPlease note you are buying a premium kit with no Chinese bearings Please note this will not fit the 2000 models The 2001-up has a 1 365" diameter input shaft pilot