Wheel/ Tire combo

JRoc

JRoc

New member
Would appreciate some feedback from other krawlers...

New JKUR with an Evo Enforcer 4", plus a 1" body lift. I want to run no smaller than 37's. My questions:

20" rims with 37" tires? Will there be enough of a side wall for proper performance on the difficult trails or should I stick with a 17" rim?

Will a total of 5" lift and skinny fenders be enough clearance to run 40's with spyder lock wheel spacers? Can a 40" go where a 37" can't?

I think that a 20" rim / 37" tire combo would look nice, this is my first choice...if it's going to work.

Thanks for all of your wisdom. :thinking:
 
prices are higher for a 20" tire, example, a 37x12.5x20 tire is around 500 bucks each. a 37x12.5x17 is 380 bucks. i'd prefer a 17" rim and tire, but it's not my jeep or nor am i buying them. if you like the look and want to spend 500 dollars more for tires, it's up to you.:yup:
 
olram30 said:
prices are higher for a 20" tire, example, a 37x12.5x20 tire is around 500 bucks each. a 37x12.5x17 is 380 bucks. i'd prefer a 17" rim and tire, but it's not my jeep or nor am i buying them. if you like the look and want to spend 500 dollars more for tires, it's up to you.:yup:
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Would one tire behave differently then the other on the trails? Any opinions on the 40" vs 37"

Thanks.
 
JRoc said:
Would one tire behave differently then the other on the trails? Any opinions on the 40" vs 37"

Thanks.
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well, 40" would do better on the trail, but it's going to cost you. it isn't cheap to run 40's. if you can afford it, go for it.
 
olram30 said:
well, 40" would do better on the trail, but it's going to cost you. it isn't cheap to run 40's. if you can afford it, go for it.
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In your opinion, do you think that a 4" Evo Enforcer lift, plus a 1" body lift with skinny fender flares will be enough clearance? I'm not as concerned about cost as I am performance...

Thanks a lot. I appreciate your help.
 
JRoc said:
In your opinion, do you think that a 4" Evo Enforcer lift, plus a 1" body lift with skinny fender flares will be enough clearance? I'm not as concerned about cost as I am performance...

Thanks a lot. I appreciate your help.
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Should be plenty. What axles are you going with? Plus hydro assist steering?
 
olram30 said:
Should be plenty. What axles are you going with? Plus hydro assist steering?
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My intention is to stick with the D44 that come on the Rubicon. I would like to reinforce them but I was going to put the miles on them and do a D60 swap a few years down the road. Steering suggestions? I hadn't considered yet.
 
JRoc said:
My intention is to stick with the D44 that come on the Rubicon. I would like to reinforce them but I was going to put the miles on them and do a D60 swap a few years down the road. Steering suggestions? I hadn't considered yet.
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Most run PSC for steering.
 
Don't forget ball joints and axle shafts. Your going to dump a lot of money into stock axles just to replace them. include 1350 drive shafts also..
 
Just a thought, but if you don't plan on changing out axles for a few years maybe run 37's on the stock 44's until it's time to do the axle swap. You can get by with the 4.10 gears. Gussets would be a must have tho. :twocents:
 
DA RUNT said:
Just a thought, but if you don't plan on changing out axles for a few years maybe run 37's on the stock 44's until it's time to do the axle swap. You can get by with the 4.10 gears. Gussets would be a must have tho. :twocents:
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That's great advice! :thumbup:

Sent from my VS980 4G using WAYALIFE mobile app
 
DA RUNT said:
Just a thought, but if you don't plan on changing out axles for a few years maybe run 37's on the stock 44's until it's time to do the axle swap. You can get by with the 4.10 gears. Gussets would be a must have tho. :twocents:
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This is my exact setup and the plan I've been on since I bought my Jeep. 4.10's aren't great, but they do the job!
 
Every one has been so helpful. Thanks guys. It looks like I should stock with 37's and spend a few extra bucks on putting 5.38 gears in. Gussets and a 1350 front drive shaft. Obviously skid plates as well... back to my original question, will a shorter side wall on 37's on 20's have a more difficult time on the trail than if I were to go with a common 17" rim?

Down the road do the D60 swap and bead locks with 40s...
 
A good rule of thumb is a 2 to 1 ration on tire height vs rim size. For a 37" tire I would personally recommend a 17" wheel as it will give you enough sidewall when aired down to flatten out a little and give you a wider footprint.
 
DA RUNT said:
A good rule of thumb is a 2 to 1 ration on tire height vs rim size. For a 37" tire I would personally recommend a 17" wheel as it will give you enough sidewall when aired down to flatten out a little and give you a wider footprint.
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That sounds like proper advice. Happen to know anyone familiar with Spyderlock wheels? Reviews seem good, from what I can read...would like to know from someone with firsthand experience.

....Someday in the near future, I look forward to being able to pay all of this excellent advice forward. WAL members are the best out there. I'm proud to be a part of this family.

Shiny side up fellas.
 
JRoc said:
That sounds like proper advice. Happen to know anyone familiar with Spyderlock wheels? Reviews seem good, from what I can read...would like to know from someone with firsthand experience.

....Someday in the near future, I look forward to being able to pay all of this excellent advice forward. WAL members are the best out there. I'm proud to be a part of this family.

Shiny side up fellas.
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I know SmokinV10 ran them on his rig before the rebuild. Maybe he'll chime in.
 
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