The 84, 85 Z31 Non turbo hubs are 4 lug and 4 sided and rotor bolts to the rear of the hub. 84-86 turbo hubs are 5 lug and 5 sided and the rotor bolts to the rear of the hub. 86-88 non turbo hubs are 5 lug and 5 sided and the rotor bolts to the rear of the hub. (same as above) 87-88 turbo hubs are 5 lug and are round and the rotor slips off from the front. I have an 86 Z31 swapped to Z32 brakes and had to buy the 87-88 turbo front hubs to make it work correctly. As far as bearing fitment to the S30, I am unsure. But I'm pretty damn sure the bearings for the Z31 hubs are all the same. In summary, there were 3 Z31 hubs 4 lug 84NA 85NA 5 lug 84T 85T 86NA / T 87NA 88NA
5 lug (slip off rotor) 87T 88T
I've searched the site and would like to know how much a bare 280Z ('77) shell weighs. No hood,fenders, doors, hatch, glass, interior, sound deadener, NOTHING!
I'm guessing around 500-600 lbs.
Anybody know for sure?