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Hey guys, I've got a 4 inch radius arm lift on my '11 6.7 f250 diesel and currently I'm running 35x12.50r20 on a 20x9 rim with +1 offset and 4.75 bs. I'm thinking about moving up to 37s with the same rims because I want to fill in the wheel well more. Will they clear without any rubbing with this setup? I have searched all over the forum and have found some information but I'm still unclear if it could be done with my setup.
My best advice: work with a local 4 Wheel Drive shop in your area, they usually know what fits or hits. Section width is where you may find a hang up on the tire you want to run.
Scott: He posted in both forums and has no replies.
Darren runs 37's here with a 4" Carli lift with no issues. The +1 offset concerns me a little bit. I think they will fit, but some trimming is going to be needed at full lock. If you don't mind trimming then go for it.
Hey guys, I've got a 4 inch radius arm lift on my '11 6.7 f250 diesel and currently I'm running 35x12.50r20 on a 20x9 rim with +1 offset and 4.75 bs. I'm thinking about moving up to 37s with the same rims because I want to fill in the wheel well more. Will they clear without any rubbing with this setup? I have searched all over the forum and have found some information but I'm still unclear if it could be done with my setup.
I did the same thing since 35's were too small. The 37's rubbed a little so I added 1 1/2" spacer to make it 6" total and it is perfect.
Darren runs 37's here with a 4" Carli lift with no issues. The +1 offset concerns me a little bit. I think they will fit, but some trimming is going to be needed at full lock. If you don't mind trimming then go for it.
Ya +1 MAY rub the radius arms. At -12 with 4.5" lift 37 x 13.5 I have no rubbing anywhere. If you are turning and compress the front suspension it just touches the fender flares on the back side (but has not ripped them off yet). With no flares you would definitely be good to go.
Thanks guys for all of the input. After seeing trucks with 37's on a 4 inch, I'm really wanting to pull the trigger on some. I think I'm going to go by a shop to see what they say about it. I don't mind minor trimming but my fear was the tires not fitting. I figure if you can get 37s on stock wheels, I'm guessing it wouldnt be much trouble to fit them with +1.
I will soon be putting a lift on my sons truck 2013 F250 and he will have 37's. For you guys running 37's how are you re calibrating the speedo?
As far as I know you can't. There are some size options in IDS but you can't go past what is there. I believe the largest is around 35" (can't remember, it's been years).
As far as I know you can't. There are some size options in IDS but you can't go past what is there. I believe the largest is around 35" (can't remember, it's been years).
H&S was getting close but they are gone.
Originally Posted by SavageNFS
35" was the closest that H&S was able to program.
Thanks for the quick replies. I spoke to SCT, it looks as they have an tire size option close to 35. Has anyone used their Livewire for tire resizing?
Wondering if it would be better to take it to a dealer?
I'm considering 37x13.5 on a 20x9 wheel, with a level kit and possibly flares. Not sure what wheel offset to go with though, possibly -12 or-24. Also might do a 4" lift it if I need it.
My other option is to stick with the 35's and just get a more negative offset with fender flares but not sure how the 35's with flares will look.
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