Ford super duty 3.31 rear end. Will it be a big mistake. ?

cummins2014 wrote:

Lynnmor wrote:

cummins2014 wrote:


There is no tapping brakes with a Cummins , and I am towing the same weight . I spend nearly 16 years in a Ford Superduty, I know all about them ,they are okay, they got nothing on the Cummins .

Perhaps you never owned a 6.7 Ford diesel or didn't drive one enough to appreciate how they work. Since my rear tires wear faster than the front now, I don't want a pair of tires doing even more work. Yes, I know you have more tires than me. Would sliding the rear tires to slow down satisfy your need for considerable exhaust braking?

You lost me on whatever you are trying to say . I only have four tires . My comment was simple the Cummins is second to none as far as how well the exhaust brake works, if the Ford now works as well , that’s great . As far as the Fords go there was a day the exhaust brake on their Powerstroke was non existent, I’m sure they have improved .

You do understand that all the braking from an exhaust brake is done thru the rear wheels of the truck? That heavy truck and trailer is pushing on those two tires, and everything else is going along for the ride.

All 6.7 Fords had exhaust braking as claimed, previous engines had none and there was no claim that they did. Yes, later models had more braking and a button to play with.