estesbubba wrote:
I ordered my truck a week ago which means I have too much time to think about things. With my 2006 5.9 and 48RE, I would just put it in tow/haul mode and it would cruise down the interstate in overdrive most of the time. With my 2015 6.7 and 68RFE, should I just do the same using tow/haul or also limit it to the first OD (5th), or what?
My fifth wheel is about 10K lbs. and 2006 had 3.73's and 2015 has 3.42's.
I have the 6.7 with 68RFE and 3.42 as well. Just put it in tow/haul and set the smart exhaust brake on and you should be good.
FWIW - I tow a bumper pull that is around 12-13k loaded up steep grades into the mountains all the time when I am camping and I've never had to lock out any gears. Just enjoy it when you get it!
