Hi rocking chair - I agree with OldSub, but would like to add that if you are driving in the cold winter months I suggest 10W-30 motor oil. I drive mine all year and in the cold Boston winters straight 30 weight is too heavy for winter. I also add ZDDP zinc additive to the oil. You can buy that online thru a bunch of different places. Eastwood also sells it. Kirban Performance has it too. The 7.50X17 rear tires should be OK for highway driving. That's what's on my '48 1 ton, but I got 5.14 gears. 60 MPH is 3000 RPM.
