Wow, sounds like a pretty emphatic response! There's only a few tranny shops in this town, and Cottman was simply the closest.
Didn't know that they were to be so avoided! Any reasons why? Could it vary from shop to shop, or as a franchise are they just a bit shotty? Most of the guys at this one seemed pretty honest, and I didn't get the impression that I was being pushed towards anything I didn't want to do (i.e. dishonesty or an in/out type place).
One more question after an hour or two of research. IF I do go with a Torsen or Quaife, will the shop charge me more to install those as a pose to a stock diff?
And on the same note of the aftermarket diffs, I've found Quaife MTX-75's around 5-600, and Torsen T-2's around $650. That sounds like my best deal as of yet, are there certain online shops to go to here?