The Stovebolt Site Forums The Parking Lot '60-'66 Trucks Help with K20 axle ratio?

Help with K20 ratio?

I just noticed in research that the K20 has a 4:57 ratio and my intent was to have a 4wd for the road and every day use. How easy and available is it to swap out Gears? The K10 original equipment is 3.73 but it may be nice to have 3.07 for gas mileage. Need to figure the ratio's using the 292cid with 4sp with P235/15 tires.

I can get a set of axles from an early 80 or late 70 K10 as another option. Don't know yet on the ratio. Or I could modify one of my S10 4wd but is not designed for the weight of the truck but guessing according to the charts that the width may be close to the 1964. I could adapt something from a newer full size independent suspension Chevy with the front drive of the S10.

I may be confused but that is usually how I start things.

I'm through with computer controlled vehicles so I will build my own that I understand.