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Old 03-26-2018, 09:14 AM   #17
lower50's
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Join Date: Oct 2014
Location: Kitchener, Ontario, Canada
Posts: 3,254
Re: 4BT Cummins in a full size pickup, a good idea or bad one?

Paenutbutter Sounds like a fun truck 25mpg is good for a full size.

As for gearing in any diesel you want to have the rpm in the sweet spot. My peak torque rpm is where I cruse on the highway. My motor is quite happy.
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1951 MG TD
1967 Jeep CJ5 1.9L TDI 33X13.5X15 Mud Grapplers.
1952 GMC 9700 p/u 7.3L diesel on air, dually
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