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Old 06-19-2021, 09:20 AM   #4
Jiggers72-GMC
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Join Date: Mar 2021
Location: up North
Posts: 542
Re: Can I use a 4L80 trans?

Yes, what C101972 said, a 4L80 is way overkill in these trucks. A 700R4 with the torque converter lock up kit works great in my truck.
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Gerry, North Bay Ontario
1971 Chevy K10 short stepper, 518 med green & white
1972 GMC C1500 long box, dark Brown, owned since 1977
1969 GMC C2500 manual
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