Forum Discussion
time2roll
Mar 19, 2017Nomad
I had to decide between 4.10 and 4.56 as I could not get 4.30 for both front and rear back when I changed mine. If your F150 3.73 seems to downshift a bit too soon or too often then I do recommend a change and to go 4.30 or 4.56 as you will be mostly towing. Mine was also a daily driver. You will still make it out West with 3.73 so don't jump too quick... see how it runs as is first. Either way you may not be using overdrive much. I about never do when towing.
I think the F150HD that year has a 10.25 differential with lots of ratios available.
Randy's R&P
BTW I have never had trouble with braking or controlling speed down long grades.
I think the F150HD that year has a 10.25 differential with lots of ratios available.
Randy's R&P
BTW I have never had trouble with braking or controlling speed down long grades.
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