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Originally Posted by thefirebirdm@n
He did, but that was years ago and he couldn't get in touch with him. What trans are you running?
I'm actually more convinced to do the TH400 now and a 4L60E or 4L80E later. The electronics is not hard to manage (albeit expensive) and it will fit. I did some research on the 2004R last night. It was based on a light duty version of the TH350 called the TH200 that was only installed in small engine vehicles in the 70s. It was prone to failure in anything with a larger engine (5.7L and higher was called out in the article). GM tried to improve the transmission and released the 2004R. I know a lot of ppl are quick to recommend it but knowing its history now, I don't particularly care to try again.
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I'm running the 200-4R but it took my builder a lot of tries, and he never did get it working perfectly. So far it is holding together behind my 428, but I only have 235 x 60 x14 tires and 3:55 gears. First gear is pretty much worthless because it spins the tires so bad it shifts into second before I barely get moving. It can get squirley in second though. It does work good going down the hiway though. I tried running this combo with the TH 400 but it turned too many rpms going down the highway, and was hitting 6000 rpm at the end of the track. That's why I went to the 200-4R. I too have heard that if you are going to run the 200-4R with slicks, things are going to break.