F250 3.73 to 4.30 axle ratio
I have a 2017 F250 4x4 crew cab, 160" wheel base, 6.2l gas, 3.73 gear ratio. I am trying to see if having 4.30 axle ratio gears installed will make much difference regarding 5th wheel towing. I noti...
Forum Discussion
My opinion--yours will vary
OP has a Ford 6R140 transmission with 3.97:1 first gear. It's hard for me to believe that more launch power is needed. The new Ford 10 speed has 4.615:1 for even more launch. There is no doubt that a higher axle ratio will improve the torque and HP in every single gear, but is it worth the cost? Only the OP can decide if it is worth it to him.
OP has a Ford 6R140 transmission with 3.97:1 first gear. It's hard for me to believe that more launch power is needed. The new Ford 10 speed has 4.615:1 for even more launch. There is no doubt that a higher axle ratio will improve the torque and HP in every single gear, but is it worth the cost? Only the OP can decide if it is worth it to him.
