How to find tow rating of an F150?

plasticmaster wrote:

I'm shopping for a used truck. I have looked at the towing guide and would prefer to get the 3.55 gears for the 5.0, but if I can't find one and get the 3.31 gears, would I really feel a big enough difference to really matter? That's what I'm trying to figure out. Either way, I would have either 9100# or 10100# tow capacity according to the chart. I'm good on payload as it is higher than my current truck.

Unless your current Silverado is the max tow whatever with 3.73s (not super likely), it has either 3.23 or 3.42 gears and less power and bigger gear splits compared to the 5-OH.

You can't ask a question like "is it enough to matter?" Too vague and based on what you personally like or will accept.
Because my answer could be different than the next guys.
Oh, and the difference will not be huge (about as succinct as "enough", lol) strictly with different gearing. 10 speed will make up for some of it.
If you want "enough to matter", look for a 3.73.10 speed 3.5 Ecoboost.
It will blow the doors off your ole Silvy!
(And I don;t even like Fords, but thems the facts! lol)

Bottom line, what I first said still stands. They all will perform as well or better than your current truck. Save for the base V6.