Suspension way too soft

[Camaroboi13]

I agree with the others about the 5100s. I had them on my XJ and they did what they were supposed to do. A shock install is an hour long job and they’re relatively cheap to replace.

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[Overthinker]

How do you like the adjustability of those B8 8100's?? they're not cheap at all but from some videos I have seen they look like a pretty amazing option for an out of the box shock.

The front shocks are not adjustable. I put adjustable ones in the rear to compensate for various loads. TBH, I haven't messed with the adjustability much. I could have saved the money and used the non-adjustable ones, but with the weight of the vehicle and variable payload and towing loads, I thought better safe than sorry.

I think the Bilsteins are awesome shocks. Huge improvement over stock Fox shocks. The freeways here in LA have a significant bump every time you go over an undercrossing. With the stock shocks, the truck would bounce 3-4 times before settling out. With the Bilsteins set at mid point, 1.5 cycles and done.

 

[chorky]

The front shocks are not adjustable. I put adjustable ones in the rear to compensate for various loads. TBH, I haven't messed with the adjustability much. I could have saved the money and used the non-adjustable ones, but with the weight of the vehicle and variable payload and towing loads, I thought better safe than sorry.

I think the Bilsteins are awesome shocks. Huge improvement over stock Fox shocks. The freeways here in LA have a significant bump every time you go over an undercrossing. With the stock shocks, the truck would bounce 3-4 times before settling out. With the Bilsteins set at mid point, 1.5 cycles and done.

have you read up on those though? They are miles above the 5100’s even. Its pretty cool how they are designed. Good to hear its working well for you! Will be curious to hear any updates if you try the adjustments

 

[PsyRN]

The Fox shocks on the Rubicon are under dampen. The shocks need about 15% more dampening.

I'm putting on Bilstein 5100 this weekend.

Never thought about the shocks being too soft. I always just thought about needing HD springs after getting the camper, but those are hard to find unless getting a lift.

 

[BAT]

I just replaced my Rubicon take off shocks from my Sport S to Fox 2.0 shocks and it was quite a difference. The ride is much stiffer to me than before.

 

[SC-1]

2020 JTR and wanting to stiffen up the ride..Put some weight in the bed, and this thing is all over the road..Anyone out there have any idea so cure this? Thanks, group!

I have a 21 with heavy duty towing package, same problems its like swimming down the highway. Rubicon shocks help a little but this jeep is overloaded empty with the heavy front bumper, winch, metal rock sliders, fiberglass camper shell, steel rear bumper. I went to an off road shop and the owner told me the only thing heavier was the stock springs of a heavy duty tow package springs off a diesel gladiator, unless you wanted to lift it, which i dont right now. Put the rear springs on that helped but then i noticed the front swimming, so i put the heavy diesel springs under the front also. This helped a lot. Jeep needs to address this issue, if your selling a truck you need it to be able to haul. Still better than driving a toyota haha

 

[PsyRN]

I have a 21 with heavy duty towing package, same problems its like swimming down the highway. Rubicon shocks help a little but this jeep is overloaded empty with the heavy front bumper, winch, metal rock sliders, fiberglass camper shell, steel rear bumper. I went to an off road shop and the owner told me the only thing heavier was the stock springs of a heavy duty tow package springs off a diesel gladiator, unless you wanted to lift it, which i dont right now. Put the rear springs on that helped but then i noticed the front swimming, so i put the heavy diesel springs under the front also. This helped a lot. Jeep needs to address this issue, if your selling a truck you need it to be able to haul. Still better than driving a toyota haha

I don't think the diesel rear springs are different from the gasser. I never checked the parts numbers though. I do have the diesel rear springs. I should check. I got my buddy's take-offs when I needed them after a collision. We both have the upgraded tow package.

If they are different and stiffer, that might fix some of my problem.

I did swap out the front springs with the diesel springs and yes, it was a big difference. Feel like those are the springs they should've put on the gasser in the first place.

 

[CrazyCooter]

The problem I have run into with swapping diesel front springs under a gasser and OE Rubi Fox shocks is that the rebound damping is even more lacking and driveability gets worse. I liked the increase spring rate especially with a winch added up front, but a shock change was definitely required to get it right.

 

[PsyRN]

The problem I have run into with swapping diesel front springs under a gasser and OE Rubi Fox shocks is that the rebound damping is even more lacking and driveability gets worse. I liked the increase spring rate especially with a winch added up front, but a shock change was definitely required to get it right.

After reading this thread, I'm leaning towards swapping out the shocks before replacing the rear springs.

 

[Scratch]

Im running MOPAR lift with a Smart Cap. It is all over the place on these mountain roads. IT is very obvious when I get in my JLR. I have replaced the rear sway bar with the Helwig. It made a small difference but it needs more. I have been considering 5100s but don't want to buy something else for no improvement.
The mopar fox shocks are good off road but terrible on road.

 

[Scratch]

Has anyone run the Rancho 9000s vs the Bilstiens?

 

[Tuna]

I had a Rubicon and now I'm in a diesel Willys. I've experienced both suspensions and both set of shocks were too soft for me. I checked the internal part number on the Fox Rubicon shocks and they came up as Fox 2.0s. So I went a step up and replaced the shocks with Fox 2.5s. Made a huge difference when I replaced them. I kept the shocks and moved them to my diesel.
On the stock shocks I could easily bounce the bed with one hand on the bumper. With 2.5s the bed barely moved. On highways it feels super planted when I hit big dips and rebounds quick.
I haven't done anything with the springs just shocks.

 

[BAT]

Im running MOPAR lift with a Smart Cap. It is all over the place on these mountain roads. IT is very obvious when I get in my JLR. I have replaced the rear sway bar with the Helwig. It made a small difference but it needs more. I have been considering 5100s but don't want to buy something else for no improvement.
The mopar fox shocks are good off road but terrible on road.

I'm still fresh into the Fox 2.0's but so far they are not that bad on the highway. Its better than the Rubicon Take off shocks

 

[CrazyCooter]

After reading this thread, I'm leaning towards swapping out the shocks before replacing the rear springs.

Yep, highly recommended. even just 5-10psi in air bags eploits the lack of damping in the rear.

 

[Main Line Willys]

My 22 JTR wallowed at highway speed. Rocked back and forth like a boat on a no wake zone. I added air bag in the rear. The e bags helped a little. I then installed Bilstein 5100in the front only. These are the 0-1.5 lift.
They made a huge difference. I have the Bilstein 5100 for the back on order.

I agree with the others. The factory Fox Rubicon shocks are too soft with the factory Rubicon springs.

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