ACOS
Thread Starter
CF Veteran
Joined: Sep 2011
Posts: 2,405
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From: Pottstown/Boyertown, PA
Year: 1998
Model: Cherokee
Engine: 6 cyl
how many folks run ACOS. looking at picking up a set, if i don't get a set of those il probably pick up some 4in springs
looking for some pros and cons let me know thank you
-durability- guess im wondering how those threads hold up
-worth the cash?
-stuff like that
looking for some pros and cons let me know thank you
-durability- guess im wondering how those threads hold up
-worth the cash?
-stuff like that
CF Veteran
Joined: Apr 2011
Posts: 4,825
Likes: 2
From: Indianapolis
Year: '99 and '91
Model: Cherokee
I wouldn't buy them to max them out. I'd get them to run the minimum height and then adjustment over time for spring sag/added weight/ fat driver.
Get coils for at least the majority of your lift. Maybe go 3.5" coils and a small spacer? I'm not sure there's many 4" coils out there.
Get coils for at least the majority of your lift. Maybe go 3.5" coils and a small spacer? I'm not sure there's many 4" coils out there.
Thread Starter
CF Veteran
Joined: Sep 2011
Posts: 2,405
Likes: 0
From: Pottstown/Boyertown, PA
Year: 1998
Model: Cherokee
Engine: 6 cyl
i have 3" springs with a 1-2 in spacer i believe ( there the heavy duty coils) and i rub like a **** up front
my rear sits about an inch i higher i figure add these and down road replace my worn out shackles then i can bump acos a little and sit even?
my rear sits about an inch i higher i figure add these and down road replace my worn out shackles then i can bump acos a little and sit even?
Thread Starter
CF Veteran
Joined: Sep 2011
Posts: 2,405
Likes: 0
From: Pottstown/Boyertown, PA
Year: 1998
Model: Cherokee
Engine: 6 cyl
head in shame here ino my wheels are a big factor 15x7 with like 4.5 backspacing i think off hand no bumpstops
but its rubbing bottom inner corner of flare if i lift it itll be clear and ok for now
but its rubbing bottom inner corner of flare if i lift it itll be clear and ok for now
CF Veteran
Joined: Apr 2011
Posts: 4,825
Likes: 2
From: Indianapolis
Year: '99 and '91
Model: Cherokee
The corner towards the rear of the Jeep? Adjustable LCAs might help that, pushes the axles back to where it should be in the middle of the fender. Either that or just trim it.
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CF Veteran
Joined: Apr 2011
Posts: 4,825
Likes: 2
From: Indianapolis
Year: '99 and '91
Model: Cherokee
Ok. So it's not a specific corner. Just in general inside the fender. Even if you got wheels with less backspacing you'd likely still hit the fender. Your only two option are bumpstops setup so it stops suspension cycle before it hits the fender OR cut your fenders. Even if you lift more the tire will still hit the fender if it can flex. Yea you may not hit it as much but it can/will happen. More lift doesn't make your fender opening bigger. I'd say just trim it. Don't fear the cut off wheel.
Seasoned Member

Joined: Apr 2012
Posts: 261
Likes: 15
From: Puyallup, WA
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0L
The threads are incredibly strong; I've seen them withstand some pretty crazy jumps. The posts will probably give out before they do.
They're totally worth it if you want to dial in your lift height perfectly as you can't always do so with spacers (which look ugly and take much longer to adjust.) People are always offering to buy my ACOS if I ever want to get rid of them, so they must be worth it.
They're totally worth it if you want to dial in your lift height perfectly as you can't always do so with spacers (which look ugly and take much longer to adjust.) People are always offering to buy my ACOS if I ever want to get rid of them, so they must be worth it.
Thread Starter
CF Veteran
Joined: Sep 2011
Posts: 2,405
Likes: 0
From: Pottstown/Boyertown, PA
Year: 1998
Model: Cherokee
Engine: 6 cyl
Ok. So it's not a specific corner. Just in general inside the fender. Even if you got wheels with less backspacing you'd likely still hit the fender. Your only two option are bumpstops setup so it stops suspension cycle before it hits the fender OR cut your fenders. Even if you lift more the tire will still hit the fender if it can flex. Yea you may not hit it as much but it can/will happen. More lift doesn't make your fender opening bigger. I'd say just trim it. Don't fear the cut off wheel.
The threads are incredibly strong; I've seen them withstand some pretty crazy jumps. The posts will probably give out before they do.
They're totally worth it if you want to dial in your lift height perfectly as you can't always do so with spacers (which look ugly and take much longer to adjust.) People are always offering to buy my ACOS if I ever want to get rid of them, so they must be worth it.
They're totally worth it if you want to dial in your lift height perfectly as you can't always do so with spacers (which look ugly and take much longer to adjust.) People are always offering to buy my ACOS if I ever want to get rid of them, so they must be worth it.

My Buddy bought a used set caked with sand I fear like mud n **** clogging the threads rendering adjustability useless you know
Sorry on my phone auto check suuucks lol
Seasoned Member

Joined: Apr 2012
Posts: 261
Likes: 15
From: Puyallup, WA
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0L
Just be sure to hit them with some kind of lubricant before you do any adjusting. I do the entire length of the posts about once a month just to keep stuff from sticking to them and accumulating. Plus they just look really nice when they're not all dirty.
Last edited by JK253; Jul 26, 2013 at 08:26 PM.
Thread Starter
CF Veteran
Joined: Sep 2011
Posts: 2,405
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From: Pottstown/Boyertown, PA
Year: 1998
Model: Cherokee
Engine: 6 cyl
I started with a 3.5in lift and after about a year the front springs relaxed to the point the XJ looked like a raked muscle car.. looked kinda cool but I went for the ACOS and found level again. Got about 1 1/4 lift total at the bottom so it sits perfect now.. That was about 4yrs ago and holding up very well and couldn't be happier. Well worth the money and would buy them again in a second.
Thread Starter
CF Veteran
Joined: Sep 2011
Posts: 2,405
Likes: 0
From: Pottstown/Boyertown, PA
Year: 1998
Model: Cherokee
Engine: 6 cyl
I started with a 3.5in lift and after about a year the front springs relaxed to the point the XJ looked like a raked muscle car.. looked kinda cool but I went for the ACOS and found level again. Got about 1 1/4 lift total at the bottom so it sits perfect now.. That was about 4yrs ago and holding up very well and couldn't be happier. Well worth the money and would buy them again in a second.
Like there made for factory springs to adequately bumpstop? That make sense?


