1.6 diff's are useless. Should I go with 1.6 or 1.8
 

I broke our 1992 N/A trackwhore's diff in july and felt so de-motivated that didnt do anything to it until today.

https://www.miataturbo.net/attachmen...ine=1321725886
1/3 of pinion rings are gone. Good news is that KAAZ LSD seems to be fine.

Now I'm wondering should I swap the LSD into the used 1.6 diff I have waiting or sell the LSD, buy 1.8 torsen with all needed parts and then find/order KIA Sportage's 4.6 R&P in it.
1.6 would cost only the shimming, 1.8 would be different story all together.

Track or street, I'd upgrade to the 7'' ring gear in the 1.8 diff.

1.8 unless you want this happening again.

you answered it in your thread title.

I'll have to source KIA 4.6/4.77 ring and pinion from some where. All ideas from where are welcome'd.

1.8 diff

Getting the right part only hurts once.

I think there was a listing for a 4.7 over on cr.net

I've been through enough 1.6 diffs to pay for a junkyard torsen. Don't be like me