1974 Chevy Truck Shifting issues

1974 CHEVROLET TRUCK
132,000 MILES • V8 • 2WD • AUTOMATIC
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IRONHEAD68
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  • 1 POST
I have a 454 backed by a TH400. It doesn't like to shift into 3rd and it doesn't like to stay there. It downshifts way to easy, & won't come out of 2nd until I release the pedal. I am also interested in replacing this tranny with a 700R4. What do I have to know to make this work?
May 17, 2008 at 11:04 AM
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PRODRIGU
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  • 26 POSTS
sounds like you have a bad vacuum modulator. the 700R4 is computer controlled you would have to make many addition and modifications to make it work
May 18, 2008 at 4:19 AM
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