Assfrow, Yokramer, and Remorseless's Circle jerk thread

[Mustapha Mond]

My goal with my Jeep is to keep it low while maintaining up travel. I was planning on running 37-39" tires, and I think my Jeep could handle 37s pretty much as-is, but I just recently got a good deal on some 39s. I am curious what others have done to run big tires while maintaining close to stock suspension compression height? Please post up shock, spring, and bump stop information, as well as what cutting or other mods you had to do to make it work. Everyone likes pictures too.

I am not interested in running any more than 2" of bump stop spacers, and ideally I want as little bump stop spacer as possible. I think I might be able to get away with just 1". I am not afraid of cutting, but I am not looking to tub the rear, or cut out the front core support. I would like to keep the ride height no taller than stock XR Rubicon height if possible.

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[Remorseless]

This is gonna be so setup dependent your best bet is to just mount up the tires and yank the springs and start playing with figuring out where it's hitting.

Your most likely path though - wide offset wheels will push the tire further away from body and frame, so it'll get into less stuff. If you're not opposed to upgrading axles, go wider there too. Front is fairly friendly for larger tires from what I've seen, it's mostly the rear that's going to require some pinch weld trimming. You're most likely ending up with aftermarket inner fender liners.

If you're avoiding lots of bump, you're also probably going to run a fairly short shock to maintain up travel (read: not extra long droop), just kind of the tradeoff there. I run 2.5" of bump in the rear with 37s and with 17x9 wheels with -12mm offset (like 4.6"ish backspace) I'm touching both sides of the inner wheel well in the rear:

My shocks are 18.4" collapsed and 30.3" extended in the rear and I still leave a little up travel on the table with just 2.5" of bump.

 

[Mustapha Mond]

This is gonna be so setup dependent your best bet is to just mount up the tires and yank the springs and start playing with figuring out where it's hitting.

Your best bet though - wide offset wheels will push the tire further away from body and frame, so it'll get into less stuff. If you're not opposed to upgrading axles, go wider there too. Front is fairly friendly for larger tires from what I've seen, it's mostly the rear that's going to require some pinch weld trimming. You're most likely ending up with aftermarket inner fender liners.

If you're avoiding lots of bump, you're also probably going to run a fairly short shock to maintain up travel (read: not extra long droop), just kind of the tradeoff there. I run 2.5" of bump in the rear with 37s and with 17x9 wheels with -12mm offset (like 4.6"ish backspace) I'm touching both sides of the inner wheel well in the rear:

My shocks are 18.4" collapsed and 30.3" extended in the rear and I still leave a little up travel on the table with just 2.5" of bump.

I'm no stranger to cycling suspension to check clearances, I am just trying to get an idea what I am going to be in for while I am waiting on my tires to show up.

I am pretty invested in my M210 and M220 at this point (trusses, 5.38s, RCVs up front, Spicer 4340 rear, Synergy knuckles, American Iron ball joint deletes, etc.). A 72" WMS would help a lot for sure, and in hindsight, I kind of wish I had built up a set of '05+ Superduty axles or 9"s with the Superduty outers, but I was/am hoping to keep the JL from snowballing into a project of that magnitude.

I have some 0 offset Methods I'll be using, and I already have Motobilt high clearance inner fenders (MB1243 & MB1254) with KBD flares. I am currently running stock Rubicon springs and the 0-1.5" Fox 2.0 IFPs which are around 10" of travel and sized perfectly for stock bump stops. I would like to move to 12" travel shocks and the short body Bilstein 7100s are the perfect length for stock bump stop height in the front (16.10" compressed), but depending if I have to extend the bump stops, I might look into different shocks with an appropriate compressed length.

Like I mentioned, I'm not scared of a bit of cutting; the picture in my first post is what I have already cut off the Jeep. A little rubbing doesn't bother me; as long as the tires aren't catching hard on anything or damaging other components. If your tires aren't rubbing, you're not running big enough tires

 

[Remorseless]

I'm no stranger to cycling suspension to check clearances, I am just trying to get an idea what I am going to be in for while I am waiting on my tires to show up.

I am pretty invested in my M210 and M220 at this point (trusses, 5.38s, RCVs up front, Spicer 4340 rear, Synergy knuckles, American Iron ball joint deletes, etc.). A 72" WMS would help a lot for sure, and in hindsight, I kind of wish I had built up a set of '05+ Superduty axles or 9"s with the Superduty outers, but I was/am hoping to keep the JL from snowballing into a project of that magnitude.

I have some 0 offset Methods I'll be using, and I already have Motobilt high clearance inner fenders (MB1243 & MB1254) with KBD flares. I am currently running stock Rubicon springs and the 0-1.5" Fox 2.0 IFPs which are around 10" of travel and sized perfectly for stock bump stops. I would like to move to 12" travel shocks and the short body Bilstein 7100s are the perfect length for stock bump stop height in the front (16.10" compressed), but depending if I have to extend the bump stops, I might look into different shocks with an appropriate compressed length.

Like I mentioned, I'm not scared of a bit of cutting; the picture in my first post is what I have already cut off the Jeep.

For whatever reason your pic isn't loading for me here, but I got bored at work and ran through your thread on Irate. You're pretty set up, probably just some pinch seam trimming in the rear. At roughly 2" of bump I'd wager 1-1.5" trim front/rear of the rear wheel well for a 39, judging by my setup at least, imagine yours would be hitting in similar spots if those 0 offset Methods are 8.5 wide which would put them roughly where my KMCs are at (0mm @ 8.5" should be roughly equivalent of my -12mm @ 9").

@3TV runs a 39 on his 2 door, but I'm not sure how much bump he's running, but he is lifted 3.5". I know he had to trim somewhere around that 1-1.5" off the rear pinch seam.

 

[ASSFROW]

Fenders, no fenders, liners, no liners. High steer, no high steer? Steering thingies contact. So many things to consider. I'd probably figure out whose lift you're going to go with and call them about component contact and then figure out fender options.

 

[jeepingib]

38s on only 2" lift.

 

[Dyolfknip74]

Portals. Its your only answer. Actually was just watching a builder out of Moab, cant remember his name, but he is making portals with a CTIS system as well. Central tire inflation would be amazing.

 

[ASSFROW]

Portals. Its your only answer. Actually was just watching a builder out of Moab, cant remember his name, but he is making portals with a CTIS system as well. Central tire inflation would be amazing.

4 inches of lift is low? He said he wanted up travel. Are you paying attention? don't make me send you to the Principals office.

 

[yokramer]

4 inches of lift is low? He said he wanted up travel. Are you paying attention? don't make me send you to the Principals office.

To be fair low jeep with big tires and up travel arent really 2 things you have at the same time.

 

[Mustapha Mond]

Fenders, no fenders, liners, no liners. High steer, no high steer? Steering thingies contact. So many things to consider. I'd probably figure out whose lift you're going to go with and call them about component contact and then figure out fender options.

Not buying a "lift," I am what you call an "Advanced User"

I just posted in your thread, but to answer some of the questions here that haven't been previously addressed, no high steer on my Jeep.

38s on only 2" lift.

Great! Rubbing, bump stop extensions, wheel offset, shock length, or any useful information to add?

Portals. Its your only answer. Actually was just watching a builder out of Moab, cant remember his name, but he is making portals with a CTIS system as well. Central tire inflation would be amazing.

No. My buggy isn't getting portals, so there is no way in hell the Jeep is getting them.

 

[Dyolfknip74]

4 inches of lift is low? He said he wanted up travel. Are you paying attention? don't make me send you to the Principals office.

ya, but it doesnt look lifted,

 

[Remorseless]

4 inches of lift is low? He said he wanted up travel. Are you paying attention? don't make me send you to the Principals office.

Well and let's be real, portals are fuckin EXPENSIVE for what you get. And kind of go against the low COG theme.

 

[Mustapha Mond]

To be fair low jeep with big tires and up travel arent really 2 things you have at the same time.

They absolutely are, it just depends how committed you are. I am more committed than most, but not fully committed either...

 

[ASSFROW]

To be fair low jeep with big tires and up travel arent really 2 things you have at the same time.

 

[yokramer]

They absolutely are, it just depends how committed you are. I am more committed than most, but not fully committed either...

Better commit to more than 0 offset while youre at it.

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