Bigger tires stock gears = less pulling power.

[emilio]

Ok first off I have a f250 CC 4x4 LB. The truck with stock 265x75x16 and 3.73 gears could pull a house. Now the truck has a 6.5 inch lift with MT classic II
20x10 and Procomp muds 37x12.50x20. It still does very well but I recently bought a 25 1/2 foot tt bumper pull. I wanted to get back some of that torque that the bigger tires rob. I thought about down sizing in tires to a
33x12.50x20 but prices for that size are crazy high. So I thought maybe changing gear ratios. What would be a optimal gear ratio for a 37 inch tire. I guess I could use my stock wheels when pulling my tt but the truck looks much better with the wider tires. Just looking for some opinions or knoe how.

[Betaracer]

4.30

Gear Ratio Calculator

[jetjock15]

4.56 gets u back to the stock ratio. Use the gear calc to determine, stock tires are 31.5 with 3.73s

[Keychain444]

I agree with jet jock 4.56 should get you what your looking for. Also do you have any mods done to the truck or are you running stock with a lift and tires? If you dont have any mods might want to look into exhaust, tuner, etc...