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LOW COG suspension setup tricks/tips (REVISED 9-24-12)
#498
CF Veteran
Join Date: May 2013
Location: Asheville, NC
Posts: 2,570
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Year: 1999
Engine: 4.0
Question for the hive mind about shocks - I'm about to have a StinkyFab 4 link long arm setup installed and am thinking I really should get longer travel shocks and more bumpstops to compensate for the added travel.
The Jeep currently has 4" coils and 10" travel Bilstein 5100s. I have Napier flares and run 33s with RE adjustable short arms. My worry is I'm going to really start to beat up on the shocks by relying on them to limit down travel. If I make sure to add in more bumpstops, should I be fine to find some 12" travel shocks or am I going to run into other issues with the size of the shock bodies?
Also - any recommendations on extended brake lines?
The Jeep currently has 4" coils and 10" travel Bilstein 5100s. I have Napier flares and run 33s with RE adjustable short arms. My worry is I'm going to really start to beat up on the shocks by relying on them to limit down travel. If I make sure to add in more bumpstops, should I be fine to find some 12" travel shocks or am I going to run into other issues with the size of the shock bodies?
Also - any recommendations on extended brake lines?
#499
I do not consider myself an expert on the matter, but I have a few years of experience in "low cog" setup xjs. I often have people asking me.So i figure its a good time to make a thread I can point people to when I am asked this question.
I realize people may disagree with my ideas and experience, but thats expected, everybody has an opinion.There is no perfect rig out there, and where a low cog setup may suffer, a taller rig may make the obstacle look easy. I am just here to share the knowledge I have acquired over building, wheeling, and competing the 3 xj's I have owned over the past several years.
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I realize people may disagree with my ideas and experience, but thats expected, everybody has an opinion.There is no perfect rig out there, and where a low cog setup may suffer, a taller rig may make the obstacle look easy. I am just here to share the knowledge I have acquired over building, wheeling, and competing the 3 xj's I have owned over the past several years.
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Last edited by robinkyle11; 09-07-2022 at 12:03 PM.
#501
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Join Date: May 2023
Location: Milwaukee, Wisconsin USA
Posts: 3
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Year: 1998
Model: Cherokee (XJ)
Engine: 4.0 I6
Wow! Thank you for such an informative post. I am on my way to looking up what half of it means, but it seems legit for my XJ for sure. I have 98 XJ 33x12.5 no idea the lift yet but big. I think 3". It belonged to my husband and his friend as a project build. His friend offered to sell it to me for $2500 so I'm trying to figure out of it's a project I can handle and wrench on. Thanks for the info.
#504
CF Veteran
Join Date: Jul 2012
Location: Andover, VT
Posts: 3,008
Received 260 Likes
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Year: 1999
Model: Cherokee (XJ)
Engine: 4.0 L
Anybody ever try to maximize up travel with long arms that mount inboard of the unibody rails?
I'm working on revamping my front suspension with LCOG in mind. Using TnT radius arms. Shooting for ~4" of lift with 5" of up travel which is limited by my axle truss contacting the oil pan.
This image shows the current limitation where the control arm is about to contact the unibody rail. The yellow marker shows where it will interfere.
At this height, the truss about 1" away from the oil pan. I'll be clearancing this area on the unibody rail to eliminate this as a problem area, and I also will be clearancing the truss slightly where it is closest to the oil pan to get as much out of that as I can.
Not much of a question here, but curious to know if anybody else has gone down this path with arms that mount in this location. Think I should be able to get the axle to stuff all the way to the oil pan at full bump. Will need to check clearances at full flex once the track bar is setup. The upper control arm mounts on the axle end get close to the unibody rail as well. Fun fun.
I'm working on revamping my front suspension with LCOG in mind. Using TnT radius arms. Shooting for ~4" of lift with 5" of up travel which is limited by my axle truss contacting the oil pan.
This image shows the current limitation where the control arm is about to contact the unibody rail. The yellow marker shows where it will interfere.
At this height, the truss about 1" away from the oil pan. I'll be clearancing this area on the unibody rail to eliminate this as a problem area, and I also will be clearancing the truss slightly where it is closest to the oil pan to get as much out of that as I can.
Not much of a question here, but curious to know if anybody else has gone down this path with arms that mount in this location. Think I should be able to get the axle to stuff all the way to the oil pan at full bump. Will need to check clearances at full flex once the track bar is setup. The upper control arm mounts on the axle end get close to the unibody rail as well. Fun fun.
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s14unimog
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