I have a 1948 3/4 ton chevy with a 250 chevy engine stock 4spd tranny and stock 4.56 rear end with p215 16 inch new balanced radial tires on modular (trailer) steel rims.
The truck does pretty well at 45 to 48 mph, and ok at 55, the problem in that when i get on a section of asphalt that is a little uneven the truck tends to drift and follow the contour of the road. the truck does not pull to either side and my mechanic says the steering box is tight. I can't put wider tires on it because of the tight clearance with the tie rods. I guess I just need to keep it in the 45mph range. any ideas? Thanks for all the help in the past charles