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Old 01-09-2019, 04:58 PM   #18
71gmcC15
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Join Date: Feb 2018
Location: Doland SD
Posts: 836
Re: Trans and motor not listed on spid

Quote:
Originally Posted by randy500 View Post
I think this comment has a lot of merit, GMC I bet is 4spd standard eq. For 72. GMC always has slightly upgraded features that differentiate it from a Chevrolet. Look for the build sheet under the seat or behind it, I have never seen one on the gas tank but have heard people say they can be found there too.
Maby your right gmc could be different. As for the build sheet it's long gone. The only thing I found when I removed the seat was a no hunting sigh. Unless it's behind the gas tank. Maby a GMC expert could shine a little light on it.
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( second times the charm) 71 gmc c15 307 sbc 373 rear gears positrac sm 465 trans. ( not listed on spid but is original )
94 chevy k1500 350 tbi 373 rear gears 4l60e one wheel peel. Gutless
07 gmc sierra classic rcsb 4.3 lt 5 speed w/t
04 chevy Silverado 1500 ext cab 5.3 4l60e.
81 chevy Scottsdale k10 muncie sm465 Np208 10 bolt 8.2 ( Old Green)
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