Ford Truck Enthusiasts Forums - View Single Post - 1969 Ford F600 Cummins conversion
View Single Post
Old 07-12-2014, 09:49 PM
80broncoman 80broncoman is offline
Elder User
Join Date: Nov 2003
Location: southeren Oh
Posts: 853
80broncoman is gaining momentum as a positive member of FTE.80broncoman is gaining momentum as a positive member of FTE.
Originally Posted by OldTimerDually View Post
Diesel round my parts is for around $3.60. Plus, the old 5.9 Cummins could get up to 21 mpg in a 1 ton dually with 4.10s if you drove it right. My 2 ton doesn't weigh too much more than one of those trucks. With my choice main and aux trans and rear end I may be able to get tall enough gears in double over to get the same mpgs in a 2 ton so long as those giant tires don't drag me down. Just thoughts..

Mine now gets 9.5-10.0 MPG towing the Jeep & trailer @ 65MPH.
Total 20,000 weight. That is with 3.58 rear axle.

Not towing when it had the 3.70 gears @ 13,000 lbs it got 11.7MPG on a 50 mile interste test run
Reply With Quote