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Old 05-20-2019, 09:44 PM   #5
1976gmc20
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Join Date: May 2015
Location: Montana
Posts: 3,696
Re: What is the RPM Revolutions per mile?

Quote:
Originally Posted by Gr8HallaFamer View Post
Can anyone tell me what the RPM revolutions per mile is on a 1987 700R4 transmission? I am in the process of fixing my speedometer which is off from changing the rear end and didn't know of this and already have taken my tail shaft apart. Not sure if knowing what color my gears are would help but I have a 17 tooth red Drive gear in the tailshaft and an orange Speedo gear.
I ran this question through my computer and the answer that came out was 42.

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Current/past Chevy/GMC trucks:
1958 Chevy C-60; 1965 GMC C-50; 1965 Chevy C-10; 1971 Chevy K-10; 1973 Chevy K-20; 1976 GMC C-20; 1977 Chevy C-10 Suburban; 1980 Chevy K-10; 1989 Chevy K1500; 1991 GMC V1500 Suburban; 2016 Chevy K2500 HD

Other vehicles: 1988 Jeep XJ; 2011 Toyota 4Runner
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