Ford super duty 3.31 rear end. Will it be a big mistake. ?
Pulling a 37 foot Cedar creek with a f350. Diesel. Would the 3.31 rear end work or should I get the 3.55?
Forum Discussion
4x4ord wrote:
I've got a 2017 F350 with 3.55 gears and 20" wheels that I tow a 16k lb rv with. My 2021 will be 3.31 gears. The 10 speed has a pretty low ratio reverse which is going to be a downer even with 3.31 gears.
Thats good to know my son is about to order a 2021 . He wants the short bed 350 . He likes that Lariat ,with the Tremor package ,whatever that is :) Good friend of mine went with the Lariat with the Tremor package ,nice truck. My son plans on towing a fifth wheel , I believe its in the 14-14,500 GVWR range. I suspected those 3:31's would be a good choice with that 10 speed . I would think if anyone knows you do, so its going to be 3:31 for you for sure ??
Sounds like its a good choice for the OP also . I know I can't compare my truck with 3.42 gears, but even with a 6 speed , and as said 15,500 GVWR , probably right around 13,500 -14K loaded I wouldn't ,and don't need any lower gears . That Cummins does just fine .
