I had my trans done by Del Trans in Newark Delaware after speaking to some of the Buick guys down that way. They were all very pleased with theirs. I went down there and talked to the guys there and concluded they knew their stuff. Their pricing was about the average going rate. I have had mine in there for about 3,000 hard miles and it still works great. The 1-2 shift is nice and firm and the 2-3 isnt mushy like the stockers. The only downside to Del Trans was the fact that they havent gotten on the ball and started offering Bruce Toelle's billet stuff as the guy that does the TH2004r's there is really good.