Editing Z31/transmissions php (section)

=== Manual Transmission Specifications ===

The Z31 came with three different manual 5 speed transmissions. All manual non-turbos used a 5 speed Nissan transmission (FS5W71C) which is quite reliable. The 84-86 manual turbos used a Borg-Warner T-5 5 speed (FS5R90A). The 87-89 manual turbo transmissions are a Nissan made (FS5R30A) model. Internally, they are the same as the Nissan transmission found in z32 turbos, trucks, pathfinders, etc. The 1987 model FS5R30A has a little different gear set than the 1988 and 1989.'''Non-turbo (All Years):'''FS5W71C (Nissan 5-speed, highly reliable)'''Turbo 1984-1986:'''FS5R90A (Borg-Warner T-5 5-speed)'''Turbo 1987-1989:'''FS5R30A (Nissan 5-speed, shared with Z32 turbos, trucks, Pathfinders, etc.)- 1987 model has a unique gear set
* 1988–1989 models use a different ratio

All Z31 manual transmissions have synchros on every forward gear. Change your gear oil regularly, and these boxes will last for years without trouble!