is it difficult/expensive to rebuild and put in?

 

idk, ask diesels opinion. i would say from the pictures it may not need rebuilt, but may look 100% different in person. ik build rear end requires a special tool for setting certain tolerances.

 

guess I'll wait for him to chime in xD

 

looks like a deal if it will all bolt up and is in good condition.

 

50 bucks is a good deal, but I wonder why it's so cheap. Replacement parts can be expensive enough that it may be more cost effective to buy a more expensive example in better shape. That said, for 50 bucks I would buy it. If all it needs is a good cleanup, putting it in is not that hard of a job.

Edit: On further looking at the pics, I would ****** it up. The carrier looks to be in good shape, and AFAIK the RX7 diffs are virtually bulletproof.

 

Appears to have the info you need. I agree, for $50 it's worth the gamble. But, it's easier to say that spending your money. I would do it for my money as well. I just dropped a lot more money on an 01 LSD and carrier.

http://miataturbo.wikidot.com/differential

 

Hmmm, I think this is the sucky Viscous Diff:

 

Guess I'll call. It says its off an 86.. I can ask if its a clutch type I guess.

EDIT: Oh wow.. Its sold already damn :/

 

if its a vlsd then it isnt worth your time.

 

now, we'll never know.