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Custom Hybrid Suspension Mix for Max Tow Gladiator (JKS / Dobinsons / Fox)

WILDHOBO

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I heard the same thing a few years ago then it was bought out then re-released to market.
Wheel Pros bought Teraflex. They in the beginning didn’t see the need for the teraflex wheel skus. My impression is that they responded to how many people responded by begging them not to end the nomad line. I was one of those.
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montechie

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I run a similar setup, I have the 2" Dobinson coils +100lbs up front, +400-600 rear, with Falcon SP2 2.1 Monotube (similar to Fox IPF but with some minimal adjustability), and JKS trackbars. Dobinsons measures their coils from a regular JT, so a Rubicon would get 1" of lift if going for the lightest springs. With a winch, ~400lbs constant load in the back and backseat area I got about 1/2" up front and 3/4" in the rear. It restored a light rake (I was squatted with the soft Rubi coils). My 35x12.5" Grabbers don't rub with the swaybar disconnected and stuffed (no surprise since I'm close to stock height).

It rides and corners great (sooo much better than stock), I don't feel the need for aftermarket arms with current setup. I did need the trackbars to recenter the rear axle and multirate coils so they wouldn't bow into the frame at full articulation/compression. I didn't catch what JT you have, so YMMV on amount of lift you'll get and change in factory angles. I'm on dirt, rough roads multiple times a week (rural life) and have no complaints with the ride. I've been on this setup 3ish years.

I've ran JKS through the ringer on my LJR for ~10 years and they've been great, and still have replacement bits for it (haven't needed yet). Can't say what their current quality is, the trackbars are fine though. So many companies have gone down the shitter the last 4ish years with private equity plays. I went JKS since I could get a discount via OnX, and haven't had a problem yet. I would pick JKS over Mopar in a heartbeat though, no hesitation. The Mopar kit is overpriced for what it is, feature-wise, and the bushings don't have a great rep for longevity.
 

WILDHOBO

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I run a similar setup, I have the 2" Dobinson coils +100lbs up front, +400-600 rear, with Falcon SP2 2.1 Monotube (similar to Fox IPF but with some minimal adjustability), and JKS trackbars. Dobinsons measures their coils from a regular JT, so a Rubicon would get 1" of lift if going for the lightest springs. With a winch, ~400lbs constant load in the back and backseat area I got about 1/2" up front and 3/4" in the rear. It restored a light rake (I was squatted with the soft Rubi coils). My 35x12.5" Grabbers don't rub with the swaybar disconnected and stuffed (no surprise since I'm close to stock height).

It rides and corners great (sooo much better than stock), I don't feel the need for aftermarket arms with current setup. I did need the trackbars to recenter the rear axle and multirate coils so they wouldn't bow into the frame at full articulation/compression. I didn't catch what JT you have, so YMMV on amount of lift you'll get and change in factory angles. I'm on dirt, rough roads multiple times a week (rural life) and have no complaints with the ride. I've been on this setup 3ish years.

I've ran JKS through the ringer on my LJR for ~10 years and they've been great, and still have replacement bits for it (haven't needed yet). Can't say what their current quality is, the trackbars are fine though. So many companies have gone down the shitter the last 4ish years with private equity plays. I went JKS since I could get a discount via OnX, and haven't had a problem yet. I would pick JKS over Mopar in a heartbeat though, no hesitation. The Mopar kit is overpriced for what it is, feature-wise, and the bushings don't have a great rep for longevity.
Jks bushings are hot garbage. I previously had their arms and front track bar. All bushings failed multiple times, and the track bar came out coated in rust from end to end.
 
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JmattNYC

JmattNYC

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I run a similar setup, I have the 2" Dobinson coils +100lbs up front, +400-600 rear, with Falcon SP2 2.1 Monotube (similar to Fox IPF but with some minimal adjustability), and JKS trackbars. Dobinsons measures their coils from a regular JT, so a Rubicon would get 1" of lift if going for the lightest springs. With a winch, ~400lbs constant load in the back and backseat area I got about 1/2" up front and 3/4" in the rear. It restored a light rake (I was squatted with the soft Rubi coils). My 35x12.5" Grabbers don't rub with the swaybar disconnected and stuffed (no surprise since I'm close to stock height).

It rides and corners great (sooo much better than stock), I don't feel the need for aftermarket arms with current setup. I did need the trackbars to recenter the rear axle and multirate coils so they wouldn't bow into the frame at full articulation/compression. I didn't catch what JT you have, so YMMV on amount of lift you'll get and change in factory angles. I'm on dirt, rough roads multiple times a week (rural life) and have no complaints with the ride. I've been on this setup 3ish years.

I've ran JKS through the ringer on my LJR for ~10 years and they've been great, and still have replacement bits for it (haven't needed yet). Can't say what their current quality is, the trackbars are fine though. So many companies have gone down the shitter the last 4ish years with private equity plays. I went JKS since I could get a discount via OnX, and haven't had a problem yet. I would pick JKS over Mopar in a heartbeat though, no hesitation. The Mopar kit is overpriced for what it is, feature-wise, and the bushings don't have a great rep for longevity.
I run a similar setup, I have the 2" Dobinson coils +100lbs up front, +400-600 rear, with Falcon SP2 2.1 Monotube (similar to Fox IPF but with some minimal adjustability), and JKS trackbars. Dobinsons measures their coils from a regular JT, so a Rubicon would get 1" of lift if going for the lightest springs. With a winch, ~400lbs constant load in the back and backseat area I got about 1/2" up front and 3/4" in the rear. It restored a light rake (I was squatted with the soft Rubi coils). My 35x12.5" Grabbers don't rub with the swaybar disconnected and stuffed (no surprise since I'm close to stock height).

It rides and corners great (sooo much better than stock), I don't feel the need for aftermarket arms with current setup. I did need the trackbars to recenter the rear axle and multirate coils so they wouldn't bow into the frame at full articulation/compression. I didn't catch what JT you have, so YMMV on amount of lift you'll get and change in factory angles. I'm on dirt, rough roads multiple times a week (rural life) and have no complaints with the ride. I've been on this setup 3ish years.

I've ran JKS through the ringer on my LJR for ~10 years and they've been great, and still have replacement bits for it (haven't needed yet). Can't say what their current quality is, the trackbars are fine though. So many companies have gone down the shitter the last 4ish years with private equity plays. I went JKS since I could get a discount via OnX, and haven't had a problem yet. I would pick JKS over Mopar in a heartbeat though, no hesitation. The Mopar kit is overpriced for what it is, feature-wise, and the bushings don't have a great rep for longevity.
Thanks for sharing your experiences with a similar set up. MY latest JT is a 2024 base sport max tow in anvil. Went with base to get as much payload and towing potential as possible along with having a blank convas. I will end up getting track bars, etc. I am leaning towards synergy now. They have some of best on market with low maintenances and great grade 8 bolts. dobinson coils how you like the ride ? I was leary of going to heavy rear because i did not want that dump truck feeling. Had diesel overland for almost 4 years so i know that rough feeling
 

montechie

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Thanks for sharing your experiences with a similar set up. MY latest JT is a 2024 base sport max tow in anvil. Went with base to get as much payload and towing potential as possible along with having a blank convas. I will end up getting track bars, etc. I am leaning towards synergy now. They have some of best on market with low maintenances and great grade 8 bolts. dobinson coils how you like the ride ? I was leary of going to heavy rear because i did not want that dump truck feeling. Had diesel overland for almost 4 years so i know that rough feeling
I went with the 2" 440-660lbs coils in the rear and the ride's not rough at all, I should be sitting near the bottom of that weight range on the back axle for my daily driving, and upper end when traveling. When on the lighter end I'm frequently on my local curvy washboards and don't get any shimmy/tail wag often caused by too stiff rear suspension. The coils + Falcons also eliminated the horrible under-dampening of the OEM setup I experienced from the '22 Rubicon setup. No brake dive or unsettledness when hitting our frost heaved interstates in MT at 80mph+

The only reason I brought up the Rubicon/Mojave vs others is that you'll get more lift with a Sport than I did out of Dobinsons, so your plan of geo correction would be a good idea. I didn't need it.
 

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mtudb24

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Rancho had a nice clean install, but I like that the nvm diff skids protect the pinion.
Yeah. NVM is good stuff. Well built and good coverage. But since I'm not a dedicated rock crawler here in Michigan (will find the occasional rocks in the logging trails in the UP and the cornfield / wheat fields I use the truck to hunt waterfowl in), I didn't think it was necessary to spend 2.5X the cost on powder coated versions then the rancho's.. $900 for NVM's vs $370 for Rancho's.
 

WILDHOBO

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Yeah. NVM is good stuff. Well built and good coverage. But since I'm not a dedicated rock crawler here in Michigan (will find the occasional rocks in the logging trails in the UP and the cornfield / wheat fields I use the truck to hunt waterfowl in), I didn't think it was necessary to spend 2.5X the cost on powder coated versions then the rancho's.. $900 for NVM's vs $370 for Rancho's.
I absolutely agree. If I still lived in Wisconsin, I’d build mine completely differently. It’s far from a dedicated crawler, as it’s our only truck, but the trails here break things that are exposed. Belly skids are just insurance.
 
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JmattNYC

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I went with the 2" 440-660lbs coils in the rear and the ride's not rough at all, I should be sitting near the bottom of that weight range on the back axle for my daily driving, and upper end when traveling. When on the lighter end I'm frequently on my local curvy washboards and don't get any shimmy/tail wag often caused by too stiff rear suspension. The coils + Falcons also eliminated the horrible under-dampening of the OEM setup I experienced from the '22 Rubicon setup. No brake dive or unsettledness when hitting our frost heaved interstates in MT at 80mph+

The only reason I brought up the Rubicon/Mojave vs others is that you'll get more lift with a Sport than I did out of Dobinsons, so your plan of geo correction would be a good idea. I didn't need it.
I went with the 2" 440-660lbs coils in the rear and the ride's not rough at all, I should be sitting near the bottom of that weight range on the back axle for my daily driving, and upper end when traveling. When on the lighter end I'm frequently on my local curvy washboards and don't get any shimmy/tail wag often caused by too stiff rear suspension. The coils + Falcons also eliminated the horrible under-dampening of the OEM setup I experienced from the '22 Rubicon setup. No brake dive or unsettledness when hitting our frost heaved interstates in MT at 80mph+

The only reason I brought up the Rubicon/Mojave vs others is that you'll get more lift with a Sport than I did out of Dobinsons, so your plan of geo correction would be a good idea. I didn't need it.
Thank you. I was planning for the 200lb-400lb rear coils and if the build ever gotten heavier or towing more weight i would jump 600-800lbs. I see some overlanders do the the extreme heavy 800lbs-1200lbs. Thanks for conforming good ride quality with these coils.
 

Gvsukids

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montechie

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Is the winch in front, or rear?
Front, so typical 12k winch+synthetic line at about 75lbs, with the Dobinson front coils for +100lbs loads. Rear is +400ish daily driving load to +600lbs when traveling and have the rear +440-660 load Dobinsons.
 

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Surprised no one has mentioned this but when you start replacing the suspension not only are you no longer making it max tow, you have to throw capacity ratings out the window. The only thing you're keeping is cooling which yes plays a part but not as much as your suspension.

If you are planning to keep towing then I'd keep the springs. I replaced the (leaking) shocks on mine with Rubicon ones but I probably would never try to tow near capacity. For anyone else who would think about getting a Max Tow and replace the suspension just save the money and don't.

Long story short please be careful when towing with not stock suspension, you should always assume have less capacity.
 
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JmattNYC

JmattNYC

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Surprised no one has mentioned this but when you start replacing the suspension not only are you no longer making it max tow, you have to throw capacity ratings out the window. The only thing you're keeping is cooling which yes plays a part but not as much as your suspension.

If you are planning to keep towing then I'd keep the springs. I replaced the (leaking) shocks on mine with Rubicon ones but I probably would never try to tow near capacity. For anyone else who would think about getting a Max Tow and replace the suspension just save the money and don't.

Long story short please be careful when towing with not stock suspension, you should always assume have less capacity.
Understood and thank you. yes i aware of some these dynamics especially as you go up in height. factory max tow rear springs are short but have the stiffest spring rates and the oem shocks are tuned for that. Then you have the whole sway issues, sag, etc. This is why i was looking at more overland type coils like Dobinson and others. Dobinson monotube shocks has some good reviews as well. The ideal set up will always start with the same coils and shocks from same brand and/or tuned for each other.

Researching this can be overwhelming lol Thats why sometimes its best to start simple but with full understanding as you replace one thing it will effect the next thing, then the next thing, etc. Just trying to zero in on what works for you, budgets and end goals is not easy, for example i used to really like the AEV setups but i think they limit you to certain extent but then when you look at how amazing and Awesome variety of rock krawler lift systems , same for terraflex and metalcoak products it can become overwhelming lol
 

ChrisNLA

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Surprised no one has mentioned this but when you start replacing the suspension not only are you no longer making it max tow, you have to throw capacity ratings out the window. The only thing you're keeping is cooling which yes plays a part but not as much as your suspension.

If you are planning to keep towing then I'd keep the springs. I replaced the (leaking) shocks on mine with Rubicon ones but I probably would never try to tow near capacity. For anyone else who would think about getting a Max Tow and replace the suspension just save the money and don't.

Long story short please be careful when towing with not stock suspension, you should always assume have less capacity.
I only bought the Max Tow for the 4.10 gears. Gladiator have no business towing near 7700 pounds anyway, and would be miserable doing it.

Any suspension most folks upgrade to will have comparable payload capacity or better to a stock Max Tow as many lift kits are tuned in consideration to armor and bumpers.
 
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Gvsukids

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Researching this can be overwhelming
Which is why my wife limits my spending. I would love to try dobinson springs, but I've already tried three other brands.
 
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JmattNYC

JmattNYC

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Which is why my wife limits my spending. I would love to try dobinson springs, but I've already tried three other brands.
Yes we need control lol This hobbies of ours. Which ones your running now?
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