Thanks for the effort and the numbers. I tried seeing if I could find anything at all the local junk yards, but I had no success. They can't pull up much info and don't have very much stock from 70s cars/trucks. A guy offered me a 2009 Canyon diff with 3.73s dor $250. I told him I'd take it only to find out it was already sold. I found one case on ebay, but the GM part number is different from mine (mine:3866116 ebay:30060). Does anyone know if that case will fit? The Colorado diff seems very close in total width and the perch locations (approx. 40"). Is there another diff I could be looking into? S10?
