When did they start putting the cooling "heat sink" looking fins on the back of the miata diffs?
Printable View
When did they start putting the cooling "heat sink" looking fins on the back of the miata diffs?
A small number of the very early 1990 Miatas were delivered in 1989 with smooth cased open diffs. All diffs since then have had fins.
Good stuff here - http://www.miata.net/garage/diffguide/index.html
That's the article that kinda confused me. It made it seem (to me anyway) that 1.6 Miatas had smooth housings. No biggie. I stumbled across another article on the same site that mentioned what Titus said. Only a small number of them had the smooth housings.
Thanks guys.
My car was built in Oct 1989 and it has fins on the differential.
Yeah I was about to say, I've never seen a smooth diff! Think my 90 was built Sep 89 & has a finned diff.Quote:
Originally Posted by bnordin