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Old 01-08-2019, 03:13 PM   #1
71gmcC15
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Join Date: Feb 2018
Location: Doland SD
Posts: 330
Trans and motor not listed on spid

My 71 gmc with a 307 and a 4 speed manual is not listed on the spid. Now i know the standerd trans is a 3 speed. With the 4 speed being an option. But the 4 speed looks like it is factory. So is it possible the spid is wrong? I don't think the 307 was a standered option. But I can't see any evadence saying it did not come with one besides the spid.
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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
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