AFTER TRANSMISSION FLUID SERVICE IT IS NOT SHIFTING

1986 Chevrolet Silverado

Tiny

left285

January, 11, 2012 AT 12:39 AM

I have a 1986 GMC 1/2 ton 4wd. I just did a transmission service on it and the next day I lost reverse and third gear. Would this be caused by the governors in the transmission? The transmission is a TH400 that has been sitting for roughly 10 years. The transmission was taken out of a truck in the hedge row and place into an everyday driver

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Tiny

hmac300

January, 11, 2012 AT 12:55 AM

You should really put the question in the question area. Check for being low n fluid. If it's around two quarts low then it's toast. You might check the filter because ther eis an o-ring around it and if it doesnt' seal good it causesair to get in and do that. And it may be a bad seal or the low reverse clutch is out as well asn teh direct clutch.

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