Has anyone switched to a smaller tire?
I have a 2014 Ram 2500 6.4 Hemi 3.73 pulling a 30' fifth wheel which weighs approx. 9000lbs. loaded. Stock tire size is 275/70r18. Truck has close to 17k miles and the original Firestone tires need to...
Forum Discussion
The math shows switching to a 65 series tire would provide 3.3% better acceleration and braking performance. Tire manufacturers will vary. Switching to a 4.10 ratio would be 9.9%.
