The 48" will fit I've done an auto to 5spd swap and it works perfect except for the fact that it rubs against the oil pan. Remember you do need the adaptor for the master cylinder. but to be on the safe side i would get the COZ line but COZ is more expensive. For this kinda car i would get the best stuff I've owned about 4 z32s and everytime i buy one I see autozone crap and and other cheap stuff and it just ruins the car.