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Old 06-19-2014, 05:49 PM   #10
G&R's57GMC
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Join Date: Aug 2010
Location: Shasta Lake, CA.
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Re: 250 I6/TH350/3:42 and a 2bbl???? anyone?

Hay Jon, I sent you a PM.

Check out http://www.gearvendors.com/hrgm3s.html
and http://www.gearvendors.com/hrgm4s.html
for a chart showing the gear ratios for the TH350 and 700R4 with different rear gears to give you an idea about what rear gear would work for you, just ignore the G.V. ratios.

If your planning on towing, stick with the 700R4 and lower rear gears.
Or for no towing the 350 with higher gears would work ... sorta.
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‘57 GMC NAPCO Long Bed V8 4 speed Bought 2008
7 other cars & trucks , 5 trailers
'56 Chevy Long Bed I6, 4 speed Bought 1990 Sold 8.22.2020
’56 GMC Suburban Pickup V8, 4 speed Hydramatic Bought 1996 Sold 10.11.2020
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Last edited by G&R's57GMC; 06-19-2014 at 05:54 PM.
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