35" Tire Upgrade

[Paluss]

So just shy of the 2 year mark and 22k miles on my 2018 JLUR I decided to upgrade the tire size. I stayed with the BFs as I like the quietness, handling, and they were wearing perfect with rotations every 6K miles. I upgraded to the 315/70/17 mounted on the OEM rims. I now have about 200 miles and I have noticed a few things:

• Softer ride, JLUR is taller now noticed that when I cleaned the windshield
• Seems to handle even better on off/on ramps at speeds above 40 not sure why expected the opposite with a taller side wall
• 1st 150 miles felt like shifting wasn't as crisp and a bit sluggish, and down shifts took to long, and my combined mileage went from 17.9 to 15.7 to 16
• next 50 miles things adjusted and back to normal shifting and JLUR felt quicker, and combined mileage indicated 18.3 yesterday, Hmmm I did do one hard launch which chirped the tires and it felt just as fast to 60 mph not sure if that caused a change
• I noticed that digital speedo is 2-3 mph faster then the gps speed
• Called 3 jeep dealers, 2 said they can't do calibration other said I have to by a device, found a 4th dealer that will do it on Tuesday
• the tires look great on the Rubi, I have pressures set at 37 psi and it tracks straight and true (I did not have any steering issues before upgrade)

I welcome feedback from others that made the upgrade...

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[kevinsmith812]

I only came for the pictures

 

[UTES]

I only came for the pictures

Me too!.

C'mon, dude. We want to see it.

Hunter

 

[OldBird]

I only came for the pictures

I've been running exactly that (315/70/17 on stock wheels) from the start. It's just right.

 

[Paluss]

will take a couple of pictures and post this weekend

 

[oceanblue2019]

I've been running exactly that (315/70/17 on stock wheels) from the start. It's just right.

We've got the same dog

 

[Fouts]

try lowering your air pressure.

 

[SecondTJ]

• I noticed that digital speedo is 2-3 mph faster then the gps speed
• Called 3 jeep dealers, 2 said they can't do calibration other said I have to by a device, found a 4th dealer that will do it on Tuesday.

That’s refreshing to find 3 out of the 4 dealer were honest with you.

The factory scan tool isn’t able to re-calibrate for 35” tires. ( the dealer would have to use an aftermarket device to change it).

 

[MarkY3130]

Your digital speedo should be showing slower than actual speed. Maybe that’s what you meant?

 

[Melny67]

I only came for the pictures

Yeah always a problem on this forum we need eye candy not just stories.

 

[4xFUN]

That’s refreshing to find 3 out of the 4 dealer were honest with you.

The factory scan tool isn’t able to re-calibrate for 35” tires. ( the dealer would have to use an aftermarket device to change it).

Not true anymore, Mopar actually has a procedure for it complete with ‘how to measure tires’ and codes to upload to your VIN.

 

[Headbarcode]

So just shy of the 2 year mark and 22k miles on my 2018 JLUR I decided to upgrade the tire size. I stayed with the BFs as I like the quietness, handling, and they were wearing perfect with rotations every 6K miles. I upgraded to the 315/70/17 mounted on the OEM rims. I now have about 200 miles and I have noticed a few things:

• Softer ride, JLUR is taller now noticed that when I cleaned the windshield
• Seems to handle even better on off/on ramps at speeds above 40 not sure why expected the opposite with a taller side wall
• 1st 150 miles felt like shifting wasn't as crisp and a bit sluggish, and down shifts took to long, and my combined mileage went from 17.9 to 15.7 to 16
• next 50 miles things adjusted and back to normal shifting and JLUR felt quicker, and combined mileage indicated 18.3 yesterday, Hmmm I did do one hard launch which chirped the tires and it felt just as fast to 60 mph not sure if that caused a change
• I noticed that digital speedo is 2-3 mph faster then the gps speed
• Called 3 jeep dealers, 2 said they can't do calibration other said I have to by a device, found a 4th dealer that will do it on Tuesday
• the tires look great on the Rubi, I have pressures set at 37 psi and it tracks straight and true (I did not have any steering issues before upgrade)

I welcome feedback from others that made the upgrade...

I've been running the same 315 ko2's mounted to the stock wheels for about 10k miles, and it's been great. My one complaint is not looking into 37's enough. I assumed they were only available in 13.5" wide and E load rated. If I knew they had 12.5" and D rated, I'd be sitting a bit higher.

You might consider dropping the tire pressure. I had to drop mine to 30-31 cold to pass a chalk test.

 

[jayteal]

So just shy of the 2 year mark and 22k miles on my 2018 JLUR I decided to upgrade the tire size. I stayed with the BFs as I like the quietness, handling, and they were wearing perfect with rotations every 6K miles. I upgraded to the 315/70/17 mounted on the OEM rims. I now have about 200 miles and I have noticed a few things:

• Softer ride, JLUR is taller now noticed that when I cleaned the windshield
• Seems to handle even better on off/on ramps at speeds above 40 not sure why expected the opposite with a taller side wall
• 1st 150 miles felt like shifting wasn't as crisp and a bit sluggish, and down shifts took to long, and my combined mileage went from 17.9 to 15.7 to 16
• next 50 miles things adjusted and back to normal shifting and JLUR felt quicker, and combined mileage indicated 18.3 yesterday, Hmmm I did do one hard launch which chirped the tires and it felt just as fast to 60 mph not sure if that caused a change
• I noticed that digital speedo is 2-3 mph faster then the gps speed
• Called 3 jeep dealers, 2 said they can't do calibration other said I have to by a device, found a 4th dealer that will do it on Tuesday
• the tires look great on the Rubi, I have pressures set at 37 psi and it tracks straight and true (I did not have any steering issues before upgrade)

I welcome feedback from others that made the upgrade...

No feedback but thanks for posting your experience. I too have an '18 JLUR now with 22,000 miles and will move to 35" BFGs when time to get new tires.

 

[Paluss]

I've been running the same 315 ko2's mounted to the stock wheels for about 10k miles, and it's been great. My one complaint is not looking into 37's enough. I assumed they were only available in 13.5" wide and E load rated. If I knew they had 12.5" and D rated, I'd be sitting a bit higher.

You might consider dropping the tire pressure. I had to drop mine to 30-31 cold to pass a chalk test.

Thanks for the advice will try the chalk test

 

[Yakpimp]

I also swapped in some 35s this past weekend. The lift hasn't been installed yet (gamechanger 2.5) but I really love the look of the bigger tire.


Stock front fender

After new wheels.

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