hi phil does any of these photos give you enough to identify the diff for ordering your housing? cars s reg 1.8 mk2

All 1.8 have the larger diff.

Cheers
Stot

Yes I thought that too at first but then I found out that late mk1 1800's had the smaller viscous LSD diff fitted as well, and the bolt on stub shafts where fitted to both the large and small diffs......can of worms any body?

Richard you've got the larger diff I'll have one in stock in the next few days as it's exchange from another customer....

The early 1.8 diffs were bolt-on shafts like the early 1.6, but they have different PCDs (don't ask me how I know, driveshafts are still a bit of a sore subject as far as my car's concerned).

I have never heard, or seen, anywhere, a 1.8 with the smaller CWP diff as OEM standard. Even the later (detuned) Euro mark 1 1.6 had the same diff as the 1.8 AFAIK...

cheers all .
phil you have an email

Have a look at this.

http://www.miata.net/garage/diffguide/