Hey Guys, Well I have the same issue that most of you are having.....I had the notchy 1-2 shift at 5000 miles, and replaced it with a new one. 3 days after I got the new one in, it started doing the same thing. Now at 11,000 miles it is totally shot. It grinds no matter if you granny shift or hit it hard. I talked to someone I know at a Ford dealer and he said most likely they wont warranty it and will probably send someone down from Detroit to inspect my car for modifications. But I agree with the fact that if we can get enough people in on this Ford has to do something about it. So I am with you guys 100 % and please let me know who I need to email this letter to and what it should contain. I have been around mustangs for 10 years now and these tremec's are supposed to be stronger the the T5 and T45, after all thats why Ford went to the extent of using the strong transmissions. There should be no reason for a mildly modified mustang to need a TKO. Unless you have heads, cams, or power adder the 3650 should be fine. Anyone with this problem should not be sitting down with this issue. Fixing this problem will not put Ford Motor Company out of bussiness, Ford will take care of that aspect with Tremec Corporation.