There are two types of manual transmissions used on these vehicles. There was no manual transmission offered in 1983. The T5OD 5-speed manual transmission was used from 1984-88, and the M5R2 5-speed manual transmission was used on 1989 and later models. The T5OD 5-speed utilizes a separate bell housing where as on the M5R2 5-speed transmission, the bell housing is an integral part of the transmission. Removal and installation procedures are the same except where noted. For more information regarding manual transmission identification, please refer to Routine Maintenance of this guide.