my 2nd gear started to grind on me and my car is daily driver thats not abused. so i wondered what happened, when i tooked it to the shop came to find out that FORD had some problems with it. they had a TSB complaint that some 04 tremec 3650 mustangs experience a 2nd gear grind or loss of 2nd gear. ford now offers a kit to repair the problem. just want to give the heads up on the problem i experienced.o yeah the kit is expensive.