Originally Posted by RAK
OK ,tires are 31x10.5 on 15 inch rims.Now where are we ? Thanks for all the brain cells thinking about this !

Looks like there were only (2) rear ratio's for a stock 1960 C10: 3.90 or 3.38

http://public.bay.livefilestore.com...iCNr-eTGE8mWIkF1PmNQ/Truck%20Axle_ID.jpg

Assuming your 327 can handle a cruising rpm of 2600, and a max RPM of 5500:

Trans Ratio = 1

Rear Tire Diameter = 31 inches

Assume a 3.9 Rear Ratio
@ 2600 RPM = 62 MPH
@ 5500 RPM = 130 MPH

Assume a 3.38 Rear Ratto
@ 2600 RPM = 71 MPH
@ 5500 RPM = 150 MPH


Last edited by Hot Rod John; 02/20/2010 2:36 PM.
In the Stovebolt Gallery ~~ "The Orange Crate" 1965 C10 SWB Step Side Build Thread

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