Hi ,
I have a 1964 C10 Stepside - short wheelbase, with 350 5.7 vortec and TH350. Tires are 225/75R15 (28.5").
Current differential is from a 1973 Chevrolet Caprice (350 engine) added to the truck by the previous owner, but I do not know the current gear ratio. It is the 10 bolt, 8.5", 28 spline differential.
When I drive on the highway at 60mph, tach is showing around 4000rpm
(
What gear ratio would be the best for this engine-trans-tire combo?
Thank you all in advance
From:
Istanbul, Turkey