th350 slips in reverse

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#1
what should the first thing to look at be? all my forward gears seem to work fine, but reverse slips when any throttle is applied.
 

Transman

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#2
You could drop the pan and look, valve body bolts can work loose causing all manner of problems but I suspect when you look inside the pan that you will find a ton 'o trash. I'm fairly sure it's overhaul time and almost as certain the high clutchs are smoked and it should be slipping in high gear also. Post results, Transman
 
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#3
i was thinking clutches too, just wanted someone with more tranny knowledge to confirm. i pulled it out and replaced it for now. i will rebuild it and keep in on the side for a spare... thanks.
 
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#5
will do, i just took it out for now and put in another one i had just recently rebuilt. that was my first one, so the next one should be easier... lol what is a good quality kit to buy for a heavy duty build?