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
GM makes the decision for you . Prior to 2020 the ratio was simply3:73 and 2020 & 2021 with 10 speed 3:42 I pulled every mountain from Buffalo NY to California and Buffalo to Florida through every mountain at 68 MPG. No tuners, no DEF delete , No air bags Buffalo to Florida 8.9MPH and Florida to Buffalo 8.9 MPG .Not towing 20 MPG. I pull a 19,000 pound Mobile Suite fifth wheel. Just fill with fuel and do regular maintenance get in and enjoy.
