Originally Posted by D B Cooper
52Carl’s real world experience with a tire diameter change is what I’m more interested in.

Anybody out there have a Task Force truck with a 235, three speed transmission, 338 gears and 30” tires? How does the truck perform with that tall of tire? What kind of RPMs are you turning at 60 MPH on a flat road? What’s your average MPG?

Thanks in advance for any info you can offer.
What is the ratio of 1st gear in your transmission? Taller tires could hurt you in first gear if your 1st gear ratio is not conducive to the 3.38 rear end you are running.

1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission