Reaching out to those doing their own shock tuning?

[Mtpisgah]

They are about 2.5 hours from my house. I think I am going to try the Dobinson coils and see how it does and then will contact them. Hopefully i can take it there and have them do it while I wait.
thanks for the recommendation.

Sponsored

 

[CrazyCooter]

They are about 2.5 hours from my house. I think I am going to try the Dobinson coils and see how it does and then will contact them. Hopefully i can take it there and have them do it while I wait.
thanks for the recommendation.

Never heard of Dobinson coils, but it appears they have a nice selection of different load springs if you want 3" lift like I do.....Wonder if they would share rates with us over a phone call? Single, double, or triple rate? I really feel like I need a double rate for my rear with the varying loads I carry.

Have you checked availability?

 

[CrazyCooter]

I just can't leave it alone knowing I can make it better......I think this is revision #8 and its the best it's ever been. Can't wait for the desert trip...........I'm hardly using the air bumps now!

I know this is all temporary until I get springs, but should be minor changes after that.......

 

[81Mojave]

Good to hear your having success!
If you don’t mind, about how much up travel do you have before you get into the air bump?
Also what’s your main strategy to get ride of the head bobble?
You are definitely stirring my interest in this

 

[CrazyCooter]

Good to hear your having success!
If you don’t mind, about how much up travel do you have before you get into the air bump?
Also what’s your main strategy to get ride of the head bobble?
You are definitely stirring my interest in this

Post #71 has all the hard travel #s. 2.5/2.25 right now but want 1-1.5" taller springs to open the gap.

Obviously I'm far from a professional tuner, but think I have a pretty good handle on this about now.

Head bobble in my opinion is caused by two categories......1) Too soft springs and/or/combined with too little shock compression damping. 2) Too heavy spring and/or/combined with too little rebound damping.

Then you could add in anti-roll bar rates, tire air pressures, and air bag pressures.

The next thing I intend to add in is one of those JKS tunable sway bar links then I would disconnect for low speed rocks and run connected for fast desert/trail.

 

[81Mojave]

Post #71 has all the hard travel #s. 2.5/2.25 right now but want 1-1.5" taller springs to open the gap.

Obviously I'm far from a professional tuner, but think I have a pretty good handle on this about now.

Head bobble in my opinion is caused by two categories......1) Too soft springs and/or/combined with too little shock compression valving. 2) Too heavy spring and/or/combined with too little rebound damping.

Then you could add in anti-roll bar rates, tire air pressures, and air bag pressures.

The next thing I intend to add in is one of those JKS tunable sway bar links then I would disconnect for low speed rocks and run connected for fast desert/trail.

Thank you!

 

[PackMule]

...

As of right now I can say Metalcloak (Tech support confimation), Evo (in the truck now), and Synergy(Super light listed rate) springs are out for sure.

First of all, impressive what you've illuminated on the shock tuning side relative to our spongy JT diesel woes.

And we are all are either weighing/waiting on diesel lift kits.

Sad to hear that feedback from Metalcloak. My suspension shop had recommended them, and he had "heard" they had a different spring rate for diesel JTs, and their website actually asks for that info. What had you heard?

Heard anything about the Rock Crawler 3.0" JT diesel springs? I've seen one youtube post and one post on this forum of people who've installed it. So far no spongy complaints from them.

The video on the Clayton's above is new news to me... it said they were ready with the 2.5" diesel fronts and moving on to the rear HDs. Anyone know if they've released the front springs to the market? It's not on their website yet.

I've gotten so tired of waiting I'm ready to pull the trigger, and these were my three finalists.

Availability of shocks right now is a whole other issue. Real tough to find them. Good to know you were able to tune the Fox 2.5's to an adequate level, even with the soft EVO JK springs.

 

[CrazyCooter]

First of all, impressive what you've illuminated on the shock tuning side relative to our spongy JT diesel woes.

And we are all are either weighing/waiting on diesel lift kits.

Sad to hear that feedback from Metalcloak. My suspension shop had recommended them, and he had "heard" they had a different spring rate for diesel JTs, and their website actually asks for that info. What had you heard?

Heard anything about the Rock Crawler 3.0" JT diesel springs? I've seen one youtube post and one post on this forum of people who've installed it. So far no spongy complaints from them.

The video on the Clayton's above is new news to me... it said they were ready with the 2.5" diesel fronts and moving on to the rear HDs. Anyone know if they've released the front springs to the market? It's not on their website yet.

I've gotten so tired of waiting I'm ready to pull the trigger, and these were my three finalists.

Availability of shocks right now is a whole other issue. Real tough to find them. Good to know you were able to tune the Fox 2.5's to an adequate level, even with the soft EVO JK springs.

I feel so much better as this whole ill driving experience the past 10 months finally comes to a close.

Nothing negative about Metalcloak, just that they wouldn't share the spring rates as many dont. I respect the guy listening to what I want to do and advising me against using them. Otherwise I think their products are great.

RockKrawler is out as it always has been......their joints have sucked over the years and the way the more current failures were dealt with says NO to me. Just on principal, I won't do business with them. Not sure what springs they offer, but some have been happy.

As far as posted specs, Clayton looks to be the closest to what I would take a chance on, but now I'm wanting those heavier coils they are testing. Maybe I would be better served by the current offering with my airvbags swapped over since I'm not heavy all of the time likeca heavy overland build?

Its been tough being the guinea pig on the Ecodiesel trucks. I was ready to order my suspension back in Dec 2020, but we still wait for the right springs...... Chrysler stroking people around this long? They probably could have offered us a heavier leveling spring and won us over.

Shock supply like other things is horrible. Just have to get on the list and wait. Everyone you call probably has some bs story about allotment trying to sway you into ordering with them.....pick your favorite outfit and wait. I was considering replacing my 5160s with some Fox 2.0 Resi CDs for my YJ now that I have the shims, but nothing in stock at any of my suppliers. Might just get on the list....

 

[jsalbre]

If you’re going to be changing weights drastically on a regular basis I’d stick with the airbags. If you go to straight springs that handle it well when you’re loaded down it’s going to ride like a 2500 when you’re empty, and the rear being significantly stiffer than the front will likely increase tendency to oversteer, similar putting a stiffer anti swaybar on the rear.

 

[PackMule]

. Maybe I would be better served by the current offering with my airbags swapped over since I'm not heavy all of the time like a heavy overland build?...

...Its been tough being the guinea pig on the Ecodiesel trucks. I was ready to order my suspension back in Dec 2019, but we still wait for the right springs....

... Since Dec 2020 for me and my JTRD, and similar use case I'm targeting. I've been waiting a long time, and now looking at second yearly trip to MOAB since getting the JT, and still waiting on a lift solution. If I'm looking at a bright side, my 100k warranty might be up by the time I change the suspension!?! I'm 1/4 way there already.

It's definitely looking like needing to source springs, arms, and shocks independently... and over a long timeline as availability eases. Which means there will be temporary solutions for months on end, and a lot of craigs listing.

... You thought of Timbrens or SumoSprings for the rear until Clayton comes out with the heavy springs? Not much $, and easy to install or remove later.

 

[CrazyCooter]

If you’re going to be changing weights drastically on a regular basis I’d stick with the airbags. If you go to straight springs that handle it well when you’re loaded down it’s going to ride like a 2500 when you’re empty, and the rear being significantly stiffer than the front will likely increase tendency to oversteer, similar putting a stiffer anti swaybar on the rear.

Agreed. I probably only have added 100-120lb sprung weight to the rear axle and thats how it rides daily except for my tent has been on there 2 months this time. I think slightly heavier rear springs with bags is the ticket.

The front is where I need the most work since it was bad out of the gate with soft springs and added probably 125lb too with the winch and Rockslides.

 

[CrazyCooter]

... Since Dec 2020 for me and my JTRD, and similar use case I'm targeting. I've been waiting a long time, and now looking at second yearly trip to MOAB since getting the JT, and still waiting on a lift solution. If I'm looking at a bright side, my 100k warranty might be up by the time I change the suspension!?! I'm 1/4 way there already.

It's definitely looking like needing to source springs, arms, and shocks independently... and over a long timeline as availability eases. Which means there will be temporary solutions for months on end, and a lot of craigs listing.

... You thought of Timbrens or SumoSprings for the rear until Clayton comes out with the heavy springs? Not much $, and easy to install or remove later.

It was actually Dec of 2020 for me too.......no ecodiesel in 2020 models...duh!

I'd suggest a spring/shock spacer front lift if you can source one in stock and then some bump spacer if you are trying to fit 37s. Minimal investment till the right stuff is available.

Timbrens and Sumos are too limiting to the uptravel for trail use, plus the rear area that they occupy is now taken by my air bumps. You want to amplify the front bottoming, add those to the rear! Just 5-10psi while unloaded has me bouncing off the front air bumps.

 

[Rusty PW]

Question on air bumps. I'm looking at the King, and Fox. I seen the instructions for the Fox rear. But can't find the instructions for the King rear. The Fox screws up into the tube. I have no idea on the Kings. I'm leaning towards the Fox's. And how much distance between the bump and the stop.

 

[Mtpisgah]

Never heard of Dobinson coils, but it appears they have a nice selection of different load springs if you want 3" lift like I do.....Wonder if they would share rates with us over a phone call? Single, double, or triple rate? I really feel like I need a double rate for my rear with the varying loads I carry.

Have you checked availability?

The coils are pretty available. There is a shop in Asheville that installs them frequently. Jeremy with @813 Fabrication & Design recently put them on his JT.
I would need to get them powdercoated, I could not rock the sea foam green.

 

[CrazyCooter]

The coils are pretty available. There is a shop in Asheville that installs them frequently. Jeremy with @813 Fabrication & Design recently put them on his JT.
I would need to get them powdercoated, I could not rock the sea foam green.

It looked like all of them were available in black, but only some in teal. Come-on man........get some hot pink/seafoam Oakleys and iridium lenses to match!

Thier heavy fronts (100-200lb extra) might be close for a stock diesel JT! I'm afraid with my Rockslide steps, Zeon winch and diesel, my trucks front axle could be 300-400 over a gas truck?

Sponsored