Go from 245/75 r17 to higher on Sport S Max Tow?

[Snake Eyes]

New to changing tire sizes. The Max Tow has the wider Dana 44s (4.10). Can I move from the 245/75 R17 to 285/70 R17 with no change to the stock rims or any rubbing? etc.

What about a 315/70 R17?

I dont want to do any lifting, regearing or anything. Want to keep everything else same including stock rims.

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[Mac]

285/75/17 is a good size if you don't want to lift at all and use the stock rims.

 

[chrismeece74]

If you can find someone with Mojave or rubicon take off wheels and tires they make a huge improvement over the stocks on the max tow, they are 285/70r17s

 

[cb4017]

I put Rubicon take-offs on my Max Tow. They are 285/70r17 and are fine. I did program the computer for the slightly larger tires with J-scan.
I was going to buy tires and put them on the stock rims but I could literally buy complete Rubi take-offs for less than buying just the tires.
Here is a pic of the tires on my JT before I installed the Mopar lift.

 

[Snake Eyes]

Thanks everyone. All the info helps

 

[Gren71]

you loose tow capacity in relation to the increase in tire diameter. So if you increase your tire diameter by %10, you will loose 760lbs of towing capacity. Not to mention the extra power needed to move larger / heavier tires. Just keep that in mind when tire shopping.

If towing is your main use, like it is for me, the oem 245s are fine. I currently have 255/75/17 Bridgestone Dueler ATs (bronco take offs) on mine and I think that is perfect. The 245s have a weight rating of 112, where the 255s have a rating of 115. I like know that I have the extra capacity of the tires despite not necessarily needing it.

 

[RiverMtnBeach]

you loose tow capacity in relation to the increase in tire diameter. So if you increase your tire diameter by %10, you will loose 760lbs of towing capacity.

Same rule-of-thumb I used when I went with Mopar lift and 35s. Opted not to fit 37s at the time because I tow a 5,500lb 21ft boat across the desert, but it handled that so well I'm reconsidering. Even had the confidence to buy a 6,000lb+, 25ft travel trailer which I hope won't be an issue even with 35s and stock 4.10 gears. Definitely not going to win any races, and a little buzzy at 4K RPM up steep hills, but seems to do fine - I'll post a thread with how that goes!
Definitely planning a re-gear to at least 4.88's, possibly an air locker rear when warrantee expires in 18 months. Feels a little like it's playing tug-of-war with high heels on right now.

 

[cshoem286]

Same rule-of-thumb I used when I went with Mopar lift and 35s.

I am thinking the same thing as I do tow on occasion. My question is how are the rear springs with the 2" lift kit. I kept my rear springs when I added the rubicon shocks and springs (frt) to keep the progressive springs on the rear.

Thinking of a 2" Lift, but do not want to totally destroy my towing capability. Are there Air Bag Supports or other items to help when doing a lift?

 

[injaneer]

I did the rubi take offs as well. And have been very pleased with the change. I did also add the teraflex 1.5" front level, but that is not necessary for the take offs on stock max tow.

 

[RiverMtnBeach]

how are the rear springs with the 2" lift kit.

They're fine. It squats a lot under load, but nothing you can't fix with a WDH or bags. I've towed with loaded bed and 600lbs on the tongue with no bottoming or stability issues. The Fox rear shocks tend to be a little bit "floaty" though. Planning to replace those with adjustable double-tube shocks for more damping when I need it.

 

[cshoem286]

They're fine. It squats a lot under load, but nothing you can't fix with a WDH or bags. I've towed with loaded bed and 600lbs on the tongue with no bottoming or stability issues. The Fox rear shocks tend to be a little bit "floaty" though. Planning to replace those with adjustable double-tube shocks for more damping when I need it.

That is what i was looking to here! Definitely use a WDH, was thinking bags as well if you get into the 6500lbs plus range.

THANKS!!

 

[RiverMtnBeach]

That is what i was looking to here! Definitely use a WDH, was thinking bags as well if you get into the 6500lbs plus range.

I'll find out what that kind of load is like tomorrow...

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