35s or 37s on 4xe?

[Trident1231]

got a rubicon 4xe, got a 4.5 inch lift (more like 4 inch due to the extra weight) given the extra power of the 4xe would 37s do good? without regearing? what are your guys thoughts? or should i just go 35s?

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[Alex01]

Looks wise a 37 would be better than a 35 with a 4" lift imo. As far as power goes you'll likely need to regear the same as the 2.0 folks since once the extra torque from the electric motor cuts out you're in the same boat. I'd guess either way you're going to lose a bit of electric range since the tire/wheels will weigh more than stock.

 

[guarnibl]

You’ll need to regear if you want 8th on heavy 37’s. You might be ok with KO2’s

 

[MonopoliJLUR]

With a 4 inch lift you have to go 37s look wise, even a molar 2 inch lift looks goofy with 35s, they’d look super disproportionate

 

[Stealth]

I'm interested in your 4xe build!
Did you watch The Trials and Tribulations of Lifting a Jeep Wrangler Rubicon 4XE - YouTube ?
at 14:57 the guy talking about Driveshaft. Please check yours and share to us.

IMO
I think 4xe still provides 470LBs torque after a High voltage battery under 1%.
I don't feel less power or slower even a High voltage battery under 1%.

@
Trident1231
How do you think about it?

 

[Gazelle]

I installed the 70772522 Mopar lift (netting 1" of lift) and also a set of small, light "37 inch" KO2's (about 35.25") with light wheels. My tire wheel combination is only 87.4 Lbs vs the Rubi's stock 76.8Lbs.

I don't feel much difference from stock with an unloaded vehicle, but will get a chance to test a bit more this weekend with a full load of people & gear driving some mountain passes & forest roads. Unloaded, it does seem to downshift more on the highway, but I've not reprogrammed for the larger tire diameter yet.

My small 37's and the Mopar lift seem a good match to me. Aesthetically, I think a 37 would be a minimum for a 4inch lift.

 

[HungryHound]

Looks wise a 37 would be better than a 35 with a 4" lift imo. As far as power goes you'll likely need to regear the same as the 2.0 folks since once the extra torque from the electric motor cuts out you're in the same boat. I'd guess either way you're going to lose a bit of electric range since the tire/wheels will weigh more than stock.

The electric never cuts off. There's always a reserve.

 

[HungryHound]

You’ll need to regear if you want 8th on heavy 37’s. You might be ok with KO2’s

Would be easier to reprogram shift points and recalibrate the speedo, wouldn't it?

 

[HungryHound]

I installed the 70772522 Mopar lift (netting 1" of lift) and also a set of small, light "37 inch" KO2's (about 35.25") with light wheels. My tire wheel combination is only 87.4 Lbs vs the Rubi's stock 76.8Lbs.

I don't feel much difference from stock with an unloaded vehicle, but will get a chance to test a bit more this weekend with a full load of people & gear driving some mountain passes & forest roads. Unloaded, it does seem to downshift more on the highway, but I've not reprogrammed for the larger tire diameter yet.

My small 37's and the Mopar lift seem a good match to me. Aesthetically, I think a 37 would be a minimum for a 4inch lift.

Have you done the swaybar disconnect and heavy articulation offroad yet? I've only known guys who did 35s with the Mopar lift. They were concerned with rub on the 37s offroad.

 

[Kayphix]

I'm interested in your 4xe build!
Did you watch The Trials and Tribulations of Lifting a Jeep Wrangler Rubicon 4XE - YouTube ?
at 14:57 the guy talking about Driveshaft. Please check yours and share to us.

Interested in thoughts about the video as well. Is this something to be concerned with?

 

[Gazelle]

Have you done the swaybar disconnect and heavy articulation offroad yet? I've only known guys who did 35s with the Mopar lift. They were concerned with rub on the 37s offroad.

Not yet. I may get a chance to get a little flexy this weekend, but we'll be focusing on camping & hiking more than serious fourwheeling. I'll certainly look for opportunities.

 

[Alex01]

Have you done the swaybar disconnect and heavy articulation offroad yet? I've only known guys who did 35s with the Mopar lift. They were concerned with rub on the 37s offroad.

Trail recon did a mopar lift with 37" nittos on his red ecodiesel. He didn't have any rubbing other than the rear plastics attached to the bumper IIRC.

 

[TheEddie]

I installed the 70772522 Mopar lift (netting 1" of lift) and also a set of small, light "37 inch" KO2's (about 35.25") with light wheels. My tire wheel combination is only 87.4 Lbs vs the Rubi's stock 76.8Lbs.

I don't feel much difference from stock with an unloaded vehicle, but will get a chance to test a bit more this weekend with a full load of people & gear driving some mountain passes & forest roads. Unloaded, it does seem to downshift more on the highway, but I've not reprogrammed for the larger tire diameter yet.

My small 37's and the Mopar lift seem a good match to me. Aesthetically, I think a 37 would be a minimum for a 4inch lift.

Following for your follow up!

 

[jahysea]

I have a 4xe with the Mopar 4xe lift. I ran the 35s from my JK for a month or more waiting for my 37s to arrive so I have experience with stock 33s no lift, 35s no lift, 35s and lift, 37s and lift. My 35s are Toyo MTs, 37s are Ridge Grapplers, something between AT and MT.

On Power/shift points/regearing, I am fairly happy as is. I have reprogrammed the vehicle with each tire change using my TaserJL(great product). I drove the 4xe to Tahoe from the Bay Area last week and while it would drop down to 6th up hills I always had power available and could shoot up to 80 on even the steepest grades. People that say the battery will fade are uninformed, Jeep prioritized torque over economy. The vehicle charges the battery using the gas engine between power surges. It is a magic machine with remarkable complexity that may have major problems someday because of that complexity but thus far it has been awesome. I seldom get 8th gear other than downhill or sometimes on flat. Regearing might restore some fuel economy and lower end torque but very drivable as is, particularly compared to my JK. In fact I now choose my 4xe over my wife’s Tesla for highway trips.

With my lift I will definitely rub front fenders off-road w 37s and 5” of backspacing. I am planning the liner delete kit from Metalcloak to gain enough clearance.

As others have said, 4” of lift on a JL is def 37 territory aesthetically over 35 IMO.

 

[Gazelle]

Following for your follow up!

I had no opportunity to flex much on my way in last night, and with Friday evening Summer traffic, we were nearly an hour late arriving - just at 9pm sunset - so I drove directly to the camping area to set up the tent.

On the way to camp, I did not some strange "clunking" when passing over bumps in the road. I figured something I had changed or loosened was the cause, but it's the tie rod ?!? I noticed the steering wheel is a little off center, but what would cause it to have ¼ of vertical play. That's not a component I touched during the install.

After hiking 13 miles, climbing 4400ft elevation in 80F heat, & arriving back to the trailhead at 8pm, I was in no mood for checking the tire clearance. Probably a good thing given the tierod issue.

Looks like Sunday I get to work on the Jeep suspension & steering.

And if your ever on the East side of Mt Rainier looking for good hike, head up to Mt. Aix.

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