Hey guys. My truck is a 16 F-250 CCSB Lariat 4x4 6.2 with 3.73 gears. I have the 275-65-20 Michelin’s which are great tires. They are 34.07 inches tall and 10.83 inches wide. I have 33k miles on them and have roughly half tread life remaining. I am thinking of going to 295’s which are 35.1 inches tall and 11.61 inches wide. They would bring my 3.73 to an effective 3.62. Has anyone made this slight bump in tire size and do you think it would be very noticeable?

A few guys on here I see running a 35” tire with 3.73 gears towing 8 to 10k trailers without any problems. 4.30’s would be optimal even 4.56 gears according to some.

Thanks. I’m planning for a travel trailer in the 8-10k range eventually so that would be my main concern. I think unloaded and towing my utility trailer around here and there at 2-5k wouldn’t make much of any difference.

You are correct.

A 275-65-20 is 34.07 inches tall. A 295-65-20 is 35.1 inches tall. My concern is about how the extra 1.03 inches of tire height will affect the drivability of my 3.73 gears.

How did you figure out what your gear ratio would change to with larger tires?

Google. Just search for a gear ratio calculator. Enter your old and new tire diameters and trucks gear ratio and it tells you what your new effective gear ratio is with the new tire diameter.

Thanks! So where are you in South Florida? I’m in Fort Myers/Naples area

I love it over on that side of the state! I was in West Palm Beach until September of 2017. I’m now in North Carolina in the foothills of the Blue Ridge Mountains. I love the way of life up here however I do long for palm trees every now and then!