Montana Owners Club - Keystone Montana 5th Wheel Forum - View Single Post

JohnBerge · 01-02-2019, 07:27 PM

ClockDr.

I have been pulling my 40 foot 3750FL for 5 years with my GMC 2500 Duramax Allison tranny with no problems. I have no upgrades (Bully type stuff) and I can pass 18 wheelers going up a mountain! However, I only travel at about 63 mph because that is my best mileage!

01-02-2019, 07:27 PM	#40
JohnBerge New Member Join Date: Feb 2015 Location: Biloxi Posts: 9 M.O.C. #16068	Fulltiming Question ClockDr. I have been pulling my 40 foot 3750FL for 5 years with my GMC 2500 Duramax Allison tranny with no problems. I have no upgrades (Bully type stuff) and I can pass 18 wheelers going up a mountain! However, I only travel at about 63 mph because that is my best mileage!