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1971 Chevy Truck Help

Tiny
BIGBLOCKERM
  • MEMBER
  • 1971 CHEVROLET TRUCK
  • V8
  • 2WD
  • AUTOMATIC
  • 99,000 MILES
I have a 400 trans. That I just overhauled and it was doing fine now it will not shift in to 3rd. I have checked for vacume leaks linkage position fluid level and all seam to be fine. The motor is a 427 and it is built up a little. I hope you can help. Thanks. Shannon
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Friday, February 13th, 2009 AT 7:03 PM

3 Replies

Tiny
PEAR69
  • MECHANIC
  • 1,482 POSTS
If all your checks are good -- and the tranny ran after the overhaul -- then change the tranny fluid and filter again. Check for a smell or sight of burnt tranny fluid. If the new clutchs didn't soak in tranny fluid overnight (during the overhaul) they could have worn a little causing a clogged or sticking valve.
Make sure there are no vacume leaks.
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Saturday, February 14th, 2009 AT 12:37 AM
Tiny
BIGBLOCKERM
  • MEMBER
  • 2 POSTS
Thank you very much. I will check the fillter and see what I get. I allso was told to readjust the linkage. So I will do both. Again, Thank you.
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Saturday, February 14th, 2009 AT 5:35 PM
Tiny
PEAR69
  • MECHANIC
  • 1,482 POSTS
Keep me posted.
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Saturday, February 14th, 2009 AT 8:18 PM

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