Re: I hate transmissions!!!!!
ok lets just say the trans is causing the problem. 1st thing is to make sure it is still bolted to the engine properly. then look at converter mounting to the flexplate. next is internal. the t400 is different than a t350 inside. it has an internal support midways in the trans, a large round piece that fits into the case snug. it is retained by a bolt through the case from under the valve body. i have seen lots of t400s broken on disassembly cause the mechanic didn't know about this bolt. if it was left out the support may spin & wear out the case & let the shaft / drum assys flop around. there would be some nice aluminum deposits there you could mine right vaway & not have to wait for this summer. the last t350 we built we bought a tq from tci & we had a bad vibration. tci sent us a new one & problem solved! let us know what you find!
andy
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