I thought I'd post this info. I had been looking for a oil pan and found the aftermarket ones were over $150 until I found this one. It is marketed by Keystone, made in Canada, and cost me $115 with a nice gasket set. Both are made by Spectra, pan # is GMP40A, and the gasket # is GK135. It's for the newer 6.2's with larger rear pan seal area. If your motor is a 88 and older you will need to replace the dip stick tube. The part number is supplied in the instructions and even on the box label. I have included pictures of the pan and the box labels. Hope this info helps anyone needing to replace their pan.
