I can post pics next weekend. I already dropped car off the jacks before I posted.
However, here is the article from DQ V5.3 where the GM mount idea was posted with part number:
I shimmed the mount to make it as high as the 510 tranny mount. Bolt the ES trans mount loosely on the crossmember, then align the crossmember with with the adapters, and then bolt the top of the trans mount to the transmission. Best way too do it. I bought the mount at AutoZone. Any auto parts store should have one. Its a very common part..