Re: new old truck??
Post by brute4c on Nov 22, 2006, 10:11am
With tires that are a true 38 inches tall and 4.56 axle gears, not counting any overdrive gearboxes, you would be turning 2420 RPM at 60 and 2820 RPM at 70 on the highway...if that helps...any tire taller than 38 inches and you need some lift...