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Old 07-03-2008, 10:47 PM
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TH 350 won't access forward gears

Okay so I have a 1971 Buick Skylark with a 350 trans and 350 motor. The transmission worked beautifully until i had recently installed a B & M shift improvement kit to the street/strip setting in attempt to lower my e/t.
After installing the kit i was extremely satisfied with the results, the shifts were firm and the tires would chirp under WOT, until recently. After a few days my transmission began slipping in forward gears more and more, now i can only access Park, Reverse, and Neutral, when i try to engage Drive, Second, and First nothing happens.
If anyone has any idea what could be causing this i would appreciate your input.

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Old 07-04-2008, 10:16 AM
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Does the vehicle move forward in manual first gear?

IF not... i suspect the forward clutch is burned out.

What was the age - condition - mileage on the trans before the SK was installed??

Dont worry how old you are... it is the mileage on your body that adds up.
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Old 07-04-2008, 10:45 AM
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The vehicle does not move forward in manual first gear either.
I believe the transmission is original to the vehicle, which means its from 1971, The transmission was in good working condition before the kit, i really never had any problems with it until this. The transmission has roughly 150 thousand miles on.
If it is the foreword clutches, would it be easy to repair?
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Old 07-04-2008, 10:51 AM
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It would have to be rebuilt at this point. If you're handy ,you could do it yourself.
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