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Old 04-10-2017, 02:21 PM   #2
68Timber
I know the pieces fit
 
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Join Date: Nov 2007
Location: MONTGOMERY, AL
Posts: 5,523
Re: Overdrive for a 1976 GMC C15 suburban with a 454

I guess it's fair to say the R4 can be set up to do that job and may be OK doing it. Me, I just wouldn't try it. Big truck, big block, 8K pound tow, hot climate? etc. I'd contact GV and ask them to recommend an installer in your area.
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John

79 2wd Blazer (Bruiser)
85 M1009 Blazer (Sarge) build
74 Honda Z50 build
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