Wazzzer

Just wanted to find out what diff I had in my gearbox, its got 6 bolts on the diff casing, S1 or S2 LSD?

I should know which is which but I can't remember...

M Brian

S1 is supposedly 6 bolt.

S2 is supposedly 8 bolt.

haven't had them apart personally only what i've read on here.

Wazzzer

yep thats it, Cheers Melv, mines S1 diff then

JesseT

It's definately as you said.

M Brian

in fact Jesse you are the man that told me!!

and have shown pictures etc of when you have done it.



I can't remember though which is the easiest Diff to use on none LSD boxes?

i.e. I have a mk2 fiesta diesel box that has a 3.33 diff (I think) not sure on the other box ratios - that I would like to fit an LSD to.. but don't know if an S2 diff which I have would be any good.

JesseT

Most BC boxes have the crownwheel attached by 6 bolts, so S1 diff is a fairly universal swap to any old BC gearbox. FRST and S2 are exceptions and then several post 1990 gearboxes. Not 100% sure on the Fiesta mk2 3.33 box, but I'd think it has the 6-bolts as well.