New Suspension for our Jeep Wrangler JL | AEV 2.5" DualSport RT Lift Kit Install

[@TheMichaeldalper]

I've viewed plenty of videos describing and comparing aftermarket suspension systems for Jeeps. Technical yet comprehensible to non-experts, this is among the most informative suspension videos I've seen. Thank you.

[@carlvillis6818]

We have this exact lift on our 2 door JL and we can confirm it rides better on the road than the stock set up. We have also taken it off road on the sand dunes etc and it performs super well. Alex knows how to set up a Jeep!!

[@ModifiedJeepsUK]

We totally agree. I really didn't expect such a difference. It's like driving a new Jeep.

[@worrdogg]

@@ModifiedJeepsUK thanks….looks great..!!!

[@ModifiedJeepsUK]

@@worrdogg Thanks 🙂

[@engaling]

I'm glad that i found your video. I was undecided betweenTeraflex ST2 and the AEV 2.5. I would have encountered a similar issue as you. I'm going to go with the AEV as result of your video. Thank you

[@VictorVectorJKU]

Good informative video! I had not thought about the angle of the lower control arms in respect to handling before, but that totally makes sense! Hopefully the new lift will support the extra weight you two carry along with you!

[@ModifiedJeepsUK]

Thanks 😀 We are not getting any sagging now and the ride is just amazing.

[@VictorVectorJKU]

@@ModifiedJeepsUK awesome that is good to hear!

[@Hubstart]

AEV make a brilliant kit definitely holds weight very well and handles grate

[@ModifiedJeepsUK]

Yes it handles very well. They are bringing out a new remote res shock too. So improvements on an already great setup. Just loving the difference.

[@MotoringAdventures_KE7SAI]

I’ve been considering this kit. Very interesting hearing about the off-roading scene in the UK!

[@TheNorthernExplorer]

New subscriber here 😉 nice video guys as always

[@ModifiedJeepsUK]

Thanks Dan. Glad you're enjoying the videos as much as love making them 😀

[@TheNorthernExplorer]

@@ModifiedJeepsUK yeah I’ve even featured in one 😂

[@ModifiedJeepsUK]

@@TheNorthernExplorer Of course you have 😂😂 I recognised the name (change) after I replied 😅 Be good to come up your way again next year.

[@TheNorthernExplorer]

@@ModifiedJeepsUK I think that definitely needs arranging 👍

[@jpxblitzkrieg]

Parabéns! Adorei a explicação Alex sobre o kit, nem mesmo em videos da "America" encontrei tais explicações. Reforçou mais ainda minha escolha e ansiedade para instalar logo em meu JLUR 2.0 com pneus KO2 37s. Saudações!

[@ModifiedJeepsUK]

Hi Edgar. Thank you and glad you're enjoying the videos. It's a great setup and works well with the 37" tyres.

[@miolleamz7579]

Did you keep a stock Rubi rims for your 37" x 12.5" x 17" tires?

[@philliplehn3600]

Hi. Does the 2 door JL kits run different rates in the springs and shocks compared to the 4 door kits. I’m running a 2door 21 rubicon. Do I need a front correction bracket for the tracking bar.(panrod). Will it also net a 3 inch lift. I was preferring 2.5 inches. Our 2 door sports and 2 door rubicon both 21 models only have 10mm height difference all round standard with the same 255/75r17 bfg goodrich MT fitted with the rubicon being higher. Not much difference. Not ours anyway.

[@eversleyowl]

Interesting, but raised some questions as the topic is a very technical area. A few mentions of spring rates in the video, so what are the spring rates and free lengths of the AEV and Teraflex springs, respectively? Still not sure I got what the point was about harmonics, it seemed like the point being made was that the spring rates at the front and back need to be the same, was that it? But then, given the kit is particularly good for heavily loaded Jeeps my instinct would be it would need a higher spring rate in the rear, is that the case? If so how does that tie in with the harmonics point? On priorities, I must admit brakes would rank above a table or fridge for me ;o). But on a serious note, given you run heavy, have a greater rotational mass in the larger tyres and sometimes tow a trailer, have you done any brake upgrades? Looking forward for the next trail video.

[@Buzzspecialvehicles]

Let me try to explain, getting my point across on camera without graphs and such can be difficult. The point I was making was very much the opposite, the spring rates of course have to be different front to back to account for the difference in weight distribution. There is a natural frequency that a spring has prior to frequency tuning, and this is essentially pre-determine by the spring rate (stiffness). If we was to hit an imaginary bump (railway track for example ) with equal spring rate frequencies, due to wheel base the front axle would be travelling back down as the rear axle was hitting the bump. This would cause a misalignment in frequency and would essentially be an “un-settled” vehicle. By increasing the spring frequency on the rear or decreasing the front to compensate we can improve the harmonic relationship between front and rear, keeping the vehicle as balanced and flat across the railway track. Of course there are other factors such as dampening, geometry and all the rest of it, but this should help clarify my pointers. PS I think the fridge and tailgate table is Tony’s personal favourite and somewhat light hearted. 😀

[@eversleyowl]

@@Buzzspecialvehicles that's really helpful, thanks for taking the time to expain. So you are either getting the front to drop back down after the bump more slowly or the rear to drop back down more quickly, so the down travel is more in balance. From what you say the tuning of the harmonics is done mainly through the damping, in effect altering the 'natural' harmoic frequency of the spring, is that right? Is it also done for an assumed speed level, as the rear wheels would presumably get the the bump in half the time at 40mph as they would at 20mph? Is that level of tuning of the suspension done for a particular level of loading, so easier with a vehicle that is not filled and emptied for different purposes? Its a fascinating topic, maybe it would be worth doing a more detailed video to expalin it with the benefit of a white board. Though I get there may be a point at which you want to keep some techniques propriatary. I did get that the table and fridge point was a bit jokey, but it just raised the question in my mind as to whether the standard brakes had needed any sort of upgrade or not. I know Tony expained a standard Dana44 in a JLU can run 37" tyres without modification, which would not be the case in my old TJ, so maybe the brakes are also suitably capable in stock form. Again, thanks for taking the time to explain.

[@worrdogg]

What’s the size of your tires?

[@ModifiedJeepsUK]

Hi. Ours are BFGoodrich KM3 37" x 12.5" x 17"

[@SkyHawk2729]

@@ModifiedJeepsUK I thought you weren't able to run 12.50 on the oem wheel? I have the same wheel,maybe I'll give it a shot.

[@christiancolletti3486]

Hey guys, hope you can answer this running the 2.5 AEV with AEV Borahs with 37s Nittos. Only issue I’m having is slight rubbing on the control arms. Any experience with this?

[@Hybrid-Human-Performance]

Of course it won’t sag you wasn’t fully loaded!!