37s without regear

[Meister]

Wanted for each out before I pull the trigger. Would like to know if anyone is running 37s with their 4.10s. Is it sluggish, what has been in your experience?

Looking at ordering a rim and tire package from discount tire direct or something like that

 

[crazy jerry]

mind you i have the 6spd trans but after putting 35s on mine, theres no way i would want 37s without regear. i feel 35s could even use a regear but ive got far to many other financial priorities right now . just my opinion.

in the event i did go with 37s, years from now when my current tires wear out, ill probly lift the front/back of the truck 2" , along with regear

 

[1pieceatatime]

Counterpoint:

I agree that my 6 speed truck on 4.10 and 37s is not as lively as it was on the stock tire size - but it was never a sports car and never will be.

I don’t tow >5000ish pounds and I don’t drive it like I stole it, and am OK with 37 and 4.10. Someday it would be nice to do 5.13, but I’m not in a huge hurry to spend $3k-$4k to do it.

I have run trails in Moab and other locations and haven’t found I was lacking the torque to get up steep inclines or over big rocks/ledges.

PS - definitely helps to use tool to reset tire size in computer - helps trans behave much better after tire size change! Speedo correction is also a nice plus of computer tweak.

 

[3TV]

I have put 37s on several different vehicles over the years, and there is always a negative on road impact from the larger tires. My 4.10 geared Power Wagon has had less negative impact than any other vehicle I have put 37s on. I really like the way my truck drives with 37s, and in many aspects it feels better than stock. I have regeared several vehicles after installing larger tires, with gears as low as 5.38 on a Jeep one time. But I have no desire to regear this truck, I'm perfectly happy with it.

 

[IRSmart]

I have 37’s on mine with no regear, but I went with 35’s with less than 300 miles on my truck, so it was not that drastic of a change for me. Had I been used to the 33’s (let’s be honest, 31.5’s) and then gone to 37’s (which mine actually measure out to 37.0”), I may have noticed it more and considered a regearing.

 

[michael harpe]

I'll have my 37x12.5x20 next month. Went with milestar Patagonia m/t and fuel off road zephyr D632 20" wheels. I'll let you know my impressions once I get them on. I also dont drive it like I stole it and dont regularly tow anything. I went with this setup for better differential height.

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[Bennyrok]

I also graduated in tire sizes from stock, to 33s and from the 33s right to the 37s definitely a bit of a difference in the feel, the ride and the gas millage, BUT" for the look and the lift? its all worth it to me. 37s on a 4 inch superlift.

 

[Meister]

So I do tow a 9k travel trailer up to high elevations. I use the truck to tow and for offloading and hunting. I currently have 35s and no issue with performance. They are wearing and so thinking of 37s....

 

[22hemi13]

I just threw 37’s in my 2500 3:73 gearing camping off of 35’s. I need gears lol. But if they were 4:10 I’d thing it would be better than what I have. That’s said she moves and I still have my low end grunt to wheel. So imo you’d be fine with no regear if you don’t tow or wanna fly down the highway.

 

[michael harpe]

I also graduated in tire sizes from stock, to 33s and from the 33s right to the 37s definitely a bit of a difference in the feel, the ride and the gas millage, BUT" for the look and the lift? its all worth it to me. 37s on a 4 inch superlift.View attachment 180303 View attachment 180304 View attachment 180305

What did mileage go down to

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[SeaSickSailor]

Also thinking of 37s. Not sure about how much trimming I’ll have to do in the front wheel well. Also, has anyone experienced 37s on a ‘19 PW having any effect on articulation off-road? I do tow a 5Klb trailer on occasion. But I’m a very conservative driver.

 

[Breaker Alex]

Hi SeaSickSailor and everyone, first post here.
I have a 2019 PowerWagon with 37x12.5R17 ( 36.7'' ) on stock wheels. I found only slight rubbing on control arms at full turn ( one side only ).
Maybe wheel spacers would help ???

I did some trails with Jeeps on trails ( rock crawling and all ) and high speed dirt roads ( 130 km/h with jumps that lifts the truck off ground )
3000 kms now with new tires and no problems at all.

I did not like the way the 8 speed transmission shifted with the 33'' but now I find its perfect. Way smoother.
I will not recalibrate for the new tires ( anyway the dealer says the 2019 computer is locked )

So do it!
Cheers

 

[olyelr]

Hi SeaSickSailor and everyone, first post here.
I have a 2019 PowerWagon with 37x12.5R17 ( 36.7'' ) on stock wheels. I found only slight rubbing on control arms at full turn ( one side only ).
Maybe wheel spacers would help ???

I did some trails with Jeeps on trails ( rock crawling and all ) and high speed dirt roads ( 130 km/h with jumps that lifts the truck off ground )
3000 kms now with new tires and no problems at all.

I did not like the way the 8 speed transmission shifted with the 33'' but now I find its perfect. Way smoother.
I will not recalibrate for the new tires ( anyway the dealer says the 2019 computer is locked )

So do it!
Cheers

Pics or it didnt happen!

 

[Breaker Alex]

Pics or it didnt happen!

Soon my friend!

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[olyelr]

Soon my friend!

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Thanks!

 

[m25443]

[QUOTE="
I did not like the way the 8 speed transmission shifted with the 33'' but now I find its perfect. Way smoother.
I will not recalibrate for the new tires ( anyway the dealer says the 2019 computer is locked )

So do it!
Cheers[/QUOTE]


You CAN recalibrate the tire size on a 2019. You need the 4 digit pin (get from a dealer. Some give it free. Most charge $20-$30 for the #).

 

[Grand Mesa]

I will not recalibrate for the new tirese on a 2019. You need the 4 digit pin (get from a dealer. Some give it free. Most charge $20-$30 for the #).

At least the Jeep JL has the "Mopar Custom Calibration" available at a price for the recalibration after the installation of larger tires or regearing for the 2018+.

If you do get the 4 digit pin, ask the Service Manager if the Mopar warranty will still be in effect after you or your paying of some teenage neighborhood kid to use it on your brand new 2019 to unlock the computer in order to recalibrate it.

I recalibrated my tire size on my 2016 PW. One thing that I discovered is that on the straight roads around here they all have a 5 to 6% gradient. The grade throws off the GPS distance and therefore the speed on my cell phone's speedometer APP by 5 to 6%. Couldn't get the truck's speedometer to match the GPS speed on these mountain roads until I drove 40 miles away to get to a flat road to set it right on.

 

[S0CAL]

I have 37’s on mine with no regear, but I went with 35’s with less than 300 miles on my truck, so it was not that drastic of a change for me. Had I been used to the 33’s (let’s be honest, 31.5’s) and then gone to 37’s (which mine actually measure out to 37.0”), I may have noticed it more and considered a regearing.

Hmmm, mine are 285/70/R17s. That’s 32.7x11.2.

Do you by chance have any stance pics on the 35s? Also curious what wheels are you running. About to pull the trigger on some 35s.

 

[Breaker Alex]

Pics or it didnt happen!

Close but no rubbing

 

[SeaSickSailor]

Pics or it didnt happen!

What would you, or anyone else, recommend for wheel spacers to eliminate all rubbing? Plus I’m curious to know if 37s cause any limitations on articulations?