I had purchased a Truckstell unit at one time - sent a check to the seller and when the weekend came and I was headed out to drive 200 miles to go pick it up - the guy calls and said he was mailing my check back because he decided that he wanted to keep it. . .
I ended up going a different direction and got an open driveline rearend and used an A833 tranny with a GM snout to get OD.
If anyone else needs the information, I still have it around here somewhere.