I'm pretty sure that both the N/A cars share the same gearbox because the ratios are exactly the same. Do the turbo Z31's have the same gearbox as turbo VL's?
Just found out the information I needed. There are 2 turbo gearboxes for the z31 and 1 non turbo gearbox. The one from the N/A is the 2nd strongest out of the 3.
FS5R30A. Thats the part number.
"The king daddy of the Z31 manual transmissions is the FS5R30A. This transmission is the same design internally as the transmission used in the Z32 300ZX models. The gear ratios and bell housing are the main differences. There are Z32s running their version of this transmission with well over 600 horsepower and are not blowing them up. There are a few short throw shifters that will work with this transmission. They are usually the cheaper/generic short throws made for the FS5W71C. Because of the design differences, no Z32 short throw shifter will work in the Z31's FS5R30A transmission. A lot of people take the stick apart and cut a small section out of it to give the shifter a shorter height. This does shorten the distance travelled, but it does not actually shorten the throw."
A write up about it I got from a z31 website.
