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Assuming a diameter of 26.4 inches for a P225x70/14 tire
https://www.differentials.com/techni...io-calculator/ I get 3000 engine rpm at 60 mph for a 3.73 ratio; 3300 engine rpm at 60 mph for a 4.10 ratio. I suspect that does not comprehend auto trans converter slip, etc. What kind of rear end? That will affect our library of available discreet rear axle ratios to choose from. K
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'63 LeMans Convertible '63 Grand Prix '65 GTO - original, unrestored, Dad was original owner, 5000 mile Royal Pontiac factory racer '74 Chevelle - original owner, 9.56 @ 139 mph best |
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