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Geometry correction brackets, how much caster did you gain?

gearhead22

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I’m looking for experiences from people who knew what their caster was prior to geometry correction install and were able to get a final measurement after JUST the geometry correction install.
Please state your before measurement and after from JUST the brackets and which brand brackets, and hole if applicable, you used.

I’m considering adding some but wondering how much caster I’d expect to increase if I change nothing except adding the brackets.
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PotterJLUR

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This doesn't answer your question at all but as someone who really doesn't like the geometry correction brackets due to the loss of ground clearance at the frame when off road and going though rocks and off ledges, I would really recommend the Mopar 2in lift front lower control arms to gain some caster, they are cheap, use really nice oem rubber bushings and most importantly don't loose ground clearance at the frame.
 
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gearhead22

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This doesn't answer your question at all but as someone who really doesn't like the geometry correction brackets due to the loss of ground clearance at the frame when off road and going though rocks and off ledges, I would really recommend the Mopar 2in lift front lower control arms to gain some caster, they are cheap, use really nice oem rubber bushings and most importantly don't loose ground clearance at the frame.
I have a full 3.5” Metalcloak kit with all 8 adjustable arms
 

BDinTX

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Another non-answer response:
I started with an AEV lift using their geo brackets and factory control arms.

Recently added 1” spacers and MC control arms (kept the AEV springs). I was planning on keeping the geo brackets but found I would be unable to tighten the jam nuts on the lowers because of that ~1” extra flange. Something to consider if you decide to add brackets.
Jeep Wrangler JL Geometry correction brackets, how much caster did you gain? 1758539992585-t

AEV above, MC below
Jeep Wrangler JL Geometry correction brackets, how much caster did you gain? 1758540066291-zg


Also note the AEV ones adjust caster by moving the upper control arm. That flat square washer has an off center hole that gives about 1/4” adjustment range front to rear.

The MC ones look like they drop the UCA bolt holes straight down but their instructions don’t specify why or which one to use. @Metalcloak any guidance?
 
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gearhead22

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Another non-answer response:
I started with an AEV lift using their geo brackets and factory control arms.

Recently added 1” spacers and MC control arms (kept the AEV springs). I was planning on keeping the geo brackets but found I would be unable to tighten the jam nuts on the lowers because of that ~1” extra flange. Something to consider if you decide to add brackets.
1758539992585-tp.webp

AEV above, MC below
1758540066291-zg.webp


Also note the AEV ones adjust caster by moving the upper control arm. That flat square washer has an off center hole that gives about 1/4” adjustment range front to rear.

The MC ones look like they drop the UCA bolt holes straight down but their instructions don’t specify why or which one to use. @Metalcloak any guidance?
I believe all geo correction brackets are designed increase caster to some degree. That’s one of their purposes. MC’s instructions say top hole for 2.5 lift, middle 3.5 and bottom 4.5
 

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JBraaph

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I’m looking for experiences from people who knew what their caster was prior to geometry correction install and were able to get a final measurement after JUST the geometry correction install.
Please state your before measurement and after from JUST the brackets and which brand brackets, and hole if applicable, you used.

I’m considering adding some but wondering how much caster I’d expect to increase if I change nothing except adding the brackets.
I put AEV brackets on my (at the time) stock height Xtreme tire package JL 4 door. Using the 2” lift setting I gained exactly 1.5 degrees of caster.
All the benefits discussed of brackets (less brake dive, better bump compliance etc) are true, would recommend.
 

GaryToo

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Their is no issue with the Rancho geo brackets and MC control arm Jam nuts , Im running them. Rancho has 3 different settings for caster. In your case as was mine the advantage of the geometry brackets is just that, geometry when you have adj control arms already.
 

Kum4224

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Mine was a 1.5 degree increase as well..I used the rancho brackets alongside my extended Mopar arms. I now sit at 7 degrees from 5.5 initially. I did it to improve wander at high speeds and hilly roads. Helped alot although steering is a bit heavy now.

Has anyone done this and then go back to factory arms with the brackets instead of the extended ones?

Im wondering if I should do that to help bring it down a bit, but then I wouldn't want to go back to the mid or low 5s as that would defeat the purpose for me. Mid 6s would be the goal or ideal.
 

Terpsmandan

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So my wife and I have JLURD's. Her is a '21 and mine is a '22. We are both running Mopar lifts. She has 35" RG's and I have 37" KO2's. After about 18 months I started having to chase DW and got the MetalCloak brackets. Went for the bottom holes as I wanted to kill the DW and drove around for about 8 months. Went to the mountains in January of 2024 into a nor-easter, pulled the t-case in 4 hi on the highway at 60 and, oops, felt the driveline vibration of a mis-aligned pinion. Had it measured and I was at 9 degrees positive caster and the tech that measured it said it looked off before he even measured it. The caster difference between the three holes is one degree. Now she has never had an issue with DW so I had her's measured and her caster is at 4.3 degrees and I am assuming that mine is at about 7 degrees positive.
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