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2" AEV spacer and Geometry brackets

HAMP

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Thanks, this was a good thread with a lot of information that helped with my own decision. Due to some "wandering on the road" syndrome (I know, it's a Jeep thing), I asked Trail Boss in Tucson AZ to install a PSC Steering Box, Synergy Track Bar, Tie Rod and Drag Link, Metal Cloak Ballers ball joints, Mojave X springs on all 4 corners, and the AEV 2" spacer kit and GCB's. We also did Axis Linx at the same time. This looked like a great DIY project but a recent back injury is making simple things painful, hence the excellent techs working with Dan Paris at Trail Boss doing the install. I am extremely pleased with the on road handling at all speeds now and the Mojave X springs compensate nicely for the winch and metal rubicon molar bumper up front, and the DiamondBack HD tonneau on the rear!
How much does the DB actually weigh? I was considering one since my bed rack will support a Tonneau Cover.
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Lrowe

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How much does the DB actually weigh? I was considering one since my bed rack will support a Tonneau Cover.
I think the HD weighs around 115 pounds for the front and rear panels and center piece that clamps to the truck. I carry about 100 lbs of recovery gear and power tank under the tonneau.
 

HAMP

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I think the HD weighs around 115 pounds for the front and rear panels and center piece that clamps to the truck. I carry about 100 lbs of recovery gear and power tank under the tonneau.
Thats not too bad. My rack is about 125-150 fully loaded (maxtracs and dual 4gal rotopax fuel cans) maybe 175-180 if i load my shovel and high lift jack. My recovery gear stays under the back seat.
 

DanW

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I will not by any means be bashing and beating on the suspension, out in these parts we have mild-mid 2 track trails and graded dirt roads. there is the occasional outcroppings you have to wheel up. I have a buddy who only works on Jeeps, but the steel ones from 1940-1980. My JT is the only modern Jeep he has touched, and he suggested RCV's, welding the axle tubes to the diff in the rear and welding trusses on front and rear. He has a similar setup on his 78 Honcho. D44 with Chromoly shafts and trussed in the rear and RCVs and full truss in the front.
Even with 37's it would probably be fine. These Jeeps are tough. I just have a mindset of keeping mine for 20 years and 400,000 miles, lol. BUT...I would go with a re-gear with 37's. I feel like my JT is just right with 4.10's and 35's. If I could re-gear to 4.56 for $1,000 I would think about it, but probably still wouldn't. With 37's, It'd go at least 4.56 and probably 4.88. This is with the auto, of course. I have a manual JL with 4.56 gears on 35's and it needed that more than the auto does. Problem is that it is at least $3k to have someone who knows what they are doing to tackle it, including parts and labor. Maybe more than that now. I paid close to 3k about 4 years or so ago for the re-gear with Dana/Spicer rings/pinions.
 

Pismo61

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I could not even begin to tell you. It was July 2022 and while it started off sounding like French to me, he ended up dumbing it down for me and that is when it clicked. Hah!

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I believe the control arm brackets gave you more caster,while also leveling them out to give you a better ride.
 

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JTGuy

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Has anyone with the brackets really had a clearance problem with them? They do hang about 2 inches down but the location is not prone to hits. They should soften up he fast hits and with that I am in the game with them. About $200 and a day under the Jeep.
 

Pismo61

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No issues on a previous JK here in SoCal.YMMV
 

JTGuy

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Called MC. They say not to do DBs with. 2 inch lift as there is really no benefit .
 

Uparms

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With a 2" spacer I would skip the brackets.

Buuuut that said.

If you're overlanding, or going to load your rig up. I would just go right to the DualSport 2.5" kit.

https://www.aev-conversions.com/product/jt-2-5-dualsport-rt-suspension/

I get it, it's more $ than the spacers and brackets, but it's the same work (basically) to put the kit in vs the spacers. You're spending close to $900 for the spacer and brackets anyway.... You'll gain more lift, BETTER load capacity better (ok arguably) shocks.

Annnd lets face it in 9 months when you want more lift or are dealing with rear end sag you're going to want to do it then any way.
Almost the same work - not really. I Just did the 2.5 RT last weekend. Great kit, great company but their bump stop extensions and their front and rear sway bar extensions are questionable on the amount of benefit you get and the time to install. You have to remove the inner liner to get the bump stop extension bolt dropped down and bolted in. Also the track bar bracket for the font is robust and beefy as heck BUT one of it's attachment points is with a muffler u bolt around the axle, I feel I need to buy a spare incase it blows out. The Geo correction brackets came with it. The drive saft drop plates ( X3) were horrible to install. I had to duck tape them together then remove the tape after they were installed. The ride is still settling so I can't speak to that. Using AEV wheel specs 25 offset and 5.77 backspacing for the Method 703s at 8.5 wide, this thing is turing a lot better then with the Rubicon take offs, 23 JT, Max Tow, Sport. I got 4 inches out of it. AEV says give it a month to settle and I think they said to measure from the lower bump stop plate?? ( I measured fender flare heights). I would recommend this as an overlanding kit. I would not recommend this as a first time newbie install. Get the Mopar kit for that. This was my third lift kit job in 6 jeeps. 2 JT and 1 TJ-Unlimited.

Most response are correct, at 2 inches, I only noticed a modest improvement in ride on my 2020 with Mopar lift.
 

Uparms

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People that say you don't need anything other than the spacers are the same ones posting why is my Jeep driving like shit? It's very simple, you lift, you change geometry of the axle components. A 2" spacer lift will change caster and will shit the axle to the side. There is no doubt about that. If you can live with a JT with an axle poking more to one side and with darty steering, have at it. The truth is that in order to bring back geometry back to factory tolerances you either need longer LCAs or Geo Brackets and an adjustable track bar. Do it right once.
Maybe, but I did the Mopar on a 2020 sport Max Tow. No new trackbar or extension braked needed with 35x12.5. I did add JKS Geo brackets not for me but for my most important co-pilot. Saw a 10% improvement in ride.
 

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MudderNuker

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Maybe, but I did the Mopar on a 2020 sport Max Tow. No new trackbar or extension braked needed with 35x12.5. I did add JKS Geo brackets not for me but for my most important co-pilot. Saw a 10% improvement in ride.
Some people don't mind the axle poking more to one side. It would drive me nuts to see one tire sticking out more than the other.
 

Gizmo

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Seems odd that we have all this concern about control arm angle and how geo brackets help that and caster But.... no mention about track bar and drag link angle increase once 2.5" or above lift . That will effect steering especially on the road . I corrected it and it helps drivability as much or more than geo brackets . You may think it drives like stock but add the Rock Jock high steer kit and be amazed at what you were missing . Not as cheap as geo brackets but more important jl-all-high-steer-knuckle-kits-complete
 

Zachanadandy

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If your caster is set at 6 degrees going with correction brackets won't get you much more. Mine is set to the middle hole and I'm right at 6 degrees. As far as the arms being more parallel to the ground aren't the extended length arms that way anyway?
No, unless you're talking long arms. The lift effectively moved the upper mount upwards, the lower mount didn't change. Mounting a slightly longer arm in the same mounts won't make it any more parallel to the ground. The Mopar extended length arms generally get people with 2" of lift into the 6⁰ range with caster... and there all of 1/4" longer than stock. Pretty sure that does nothing to flatten out the lower arms and obviously does absolutely nothing to the uppers. Caster doesn't tell the whole story of ride. A flat arm effectively travels straight up and down when you hit a bump or a pothole. That puts all of the force into the springs and shocks which then can do their job of absorbing those forces. The further you get from parallel, the more of that force is transferred horizontally through the arm... and straight into the frame where there's nothing to absorb it and the driver feels all of it. Also the more angle there is the more of an arc the wheel travels in, forcing the tire to move forward when you hit a bump. Obviously that is also terrible for ride. 2" is low enough the arms aren't at a terrible angle, but every Jeep will ride better with the flattest arms possible.
 

Zachanadandy

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Seems odd that we have all this concern about control arm angle and how geo brackets help that and caster But.... no mention about track bar and drag link angle increase once 2.5" or above lift . That will effect steering especially on the road . I corrected it and it helps drivability as much or more than geo brackets . You may think it drives like stock but add the Rock Jock high steer kit and be amazed at what you were missing . Not as cheap as geo brackets but more important jl-all-high-steer-knuckle-kits-complete
Or just buy a drag link flip kit with raised track bar mount from metalcloak (which I run) or synergy, or steersmarts (which the wife runs) or others for less than half. All the benefits to handling you get from that kit for ~$700. Especially if you've already got a model that comes with the steel knuckles like my mojave or the wife's JLUR with the XR package. Sure the tie rod sits lower than the rock jock, but I don't play bull dozer with my front axle so it's never been a problem. Even if I picked a bad line I'd rather hit my tie rod than cave in my dif cover or impact the FAD area which is a known weak point on these axles.
Jeep Gladiator 2" AEV spacer and Geometry brackets 20250114_164456
 

darkhorse13

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In full transparency I did not read the prior 6 pages, but if there is any question around the effectiveness of drop brackets on ride quality I will whole heartedly stand behind the improved front end bump compliance after "pick your brand" drop brackets. I decided to try out JKS drop brackets with OEM front upper/lower control arms after 4 years of not having them on a simple 3" lift and I was blown away with how much better the ride became. I had everything Synergy Mfg you could throw at the front axle/steering components and I was very happy, but when I switched out to OEM arms and drop bracket it was a noticeable improvement and something I wish I'd done a long time ago. Granted I sold my JTR this month, but if I ever got another Gladiator I'd keep OEM front arms with drop brackets and still do the Rock Krawler 4-link in the rear. It may not be the best for the hardcore trail guys, but rigs that see more highway time will benefit tremendously.

Also, as an FYI, Synergy Mfg lower control arms will likely NOT work with drop brackets as it appears the pinch bolt is too close to the bracket. I never flexed this out to verify but after I installed the Synergy Mfg lower and saw this, I took it off to use the OEM lower. The Synergy Mfg uppers are fine if you want to fine tune caster.

Jeep Gladiator 2" AEV spacer and Geometry brackets 1748631028661-9f


Jeep Gladiator 2" AEV spacer and Geometry brackets 1748630984995-jd


Darn near perfectly parallel front OEM arm with the JKS drop bracket... also the last pic I have of my JTR before she sold.

Jeep Gladiator 2" AEV spacer and Geometry brackets 1748631353189-m3
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