My hauler(much older than what you guys have) is an 85 Chevy, 454, 465 tranny(No OD)
4.10:1 Gears. It came with 235 75 16's. Kept having blow outs on the rear, found out when loaded, my tires were touching. Not enough stud to put in a spacer, so we tried 225's, and they also touched, then we tried 215 85 16's and they had a good amount of space between them when we put a big diesel on the back. (almost lifted the front tires off the ground!) Really can't tell a difference in power, towing, or fuel mileage, only difference is about 2 MPH on the speedo.
