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Old 07-06-2009, 12:05 AM
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T-400 always in first

Hello everyone
I have a later style turbo 400 that I rebuilt a few years ago and I has about 30,000 miles on it. I rebuilt it with one of the B&M transkits and replaced everything. I had the transmission in a heavy 66 impala ss and stupid me I was asked to do a burnout and I did. It started the burnout and then slipped very bad to the point that my engine hit the red line, once I let my foot out of it the slip stopped but it was very reluctant to shift and now it is stuck in what seems to be first gear all of the time. In park the engine will only rev to the stall speed and it feels like a trans brake, when in reverse it feels like reverse and first are fighting, neutral goes forward like first, and in drive it will shift but not well. I have pulled the transmission and removed the valve body. I found that the oil was fairly clean a little grit in the pan but not bad. I did find that the plastic accumulator piston has a crack in it that definitely is letting fluid by. could this be all of my trouble? I donít really want to buy a whole new rebuild kit and go through everything, I do plan on tearing it apart further to see if I see anything wrong I am just hopping someone could point me in a direction of what may be wrong. Thanks in advance for any help

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Old 07-06-2009, 06:55 PM
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i do know in a normal trans without a brake. usualy means the forward clutch has welded itself together. i am not to experienced when it comes to transbrakes. but your cracked accumulator could have caused a crossleak. but maby im out to lunch..
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