quadman_20

I've been sifting through threads about using a N/A FC differential center chunk in a '84/'85 FB (please correct me if I'm wrong). But I can not find any references to pinion flange size. Are they a different size (between the FB and FC)?

If they are different, would it be possible to swap a FB flange onto the FC pinion gear without disturbing pinion depth? Or is it possible to use a FC yoke on a FB driveshaft?

I also noticed that there are alot of "theory" threads on this subject. Anyone actually have any first hand exsperience with this swap? Any other modifications associated?

I'm shure using a GSL(-SE) axle/center chunk would be easier, but I've found a good deal on a FC unit.

Thanks
Ben

quadman_20

Maybey I should have worded the subject different...

No one has done this swap?

gamble302

n/a fc one thats got lsd? i thought those were rare

if i were swapping from another car, id go for a miata torsen unit. no idea about driveshaft fitment, but driveshafts are cheap to get made up anyways

quadman_20

From what I've read in the 2nd gen forum, all GXL model cars had a LSD.. Thats what I've found..

I'd like to go with the Miata Torsen unit, but it requires more modifications. Plus this is a close to stock street car thats a daily driver. IMO, a stock LSD is fine for me..

Modifiying a driveshaft is spending money.. I'd just wait and look for a FB diff. instead of buying this one and modifing a drive shaft.

Thanks
Ben