Any CTD out there on 37" tires?

I'm going to go with 37's by the end of this year. I've been researching lifts for the past month to try and figure out what my best option is. I'd like to see the 4.5" lift with 37's, because it seems like it wouldn't really fit without some trimming.

i dont want to run 37s right now but in the future i might and i do want fender flares so i am going with a 6 inch super lift with my 35s and you never know what will happen when the 35s need to be replaced

the only prob is deciding when to do it because we all know that all four tires never wear out/go flat at the same time

a guy around here says he can fit 37s on his mega cab with the 4 inch super lift and the shop tells me no way without clearance issues of some some sort so i m playing it safe

I run 36's with a 6" lift. With the 10" wide wheels, the 36s fit perfectly.

I am buying a set of winter wheels in Oct. I already have em on reserve, they will be the 37x12.5 on the stock wheel. They should have no problems fitting with the stock wheel, but with an aftermarket offset, they would probably rub when turning.

If you stick with the stock wheels or H2's, then 37's will fit. Its all in the backspacing and width.

For those running 37" tires, do you have to change gears on your truck?

No need, the high torque levels of the diesel make the larger tires unoticable. I tend to use first gear more often then before, but I try to baby my truck.

BTW, my 37" BFGs actually measure just a tad larger then my Iroks, I hate how some companies short ya out those few milimeters, haha.

MSHarnett said:

No need, the high torque levels of the diesel make the larger tires unoticable. I tend to use first gear more often then before, but I try to baby my truck.

BTW, my 37" BFGs actually measure just a tad larger then my Iroks, I hate how some companies short ya out those few milimeters, haha.

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Yea but you have a manual transmision and my truck is auto, I wonder if my trucks transmision is gonna have a hard time shifting like crazy with the 37" tires...

It wont shift like crazy, but you'll probably end up lugging the engine a lot. With 35" tires @ 1500rpm, I'm doing about 60mph. (probably 65mph with 37's) As long as a good chunk of your driving is at highway speeds, you should be fine. When I drive on back roads or around in the city at around 45mph or so, I'm down around 1100, and the truck is a real slug at that rpm - very unresponsive. Too bad they got rid of the OD lockout for the '05's.