Rubi springs/coils on stock Sport S

[Like-a-virgin]

I’ve been reading that the fox shocks are too mushy when put onto a stock JTS. Does anyone have any information on what just the springs would do? Would it be an upgrade? Any lift at all?

I like the stiffness of the stock shocks and don’t wanna go softer. But I’d like to get a half inch or so AND maybe even stiffen the ride further.
Couldn’t find anything related to just the springs.

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[PuddleJumper]

I’ve been reading that the fox shocks are too mushy when put onto a stock JTS. Does anyone have any information on what just the springs would do? Would it be an upgrade? Any lift at all?

I like the stiffness of the stock shocks and don’t wanna go softer. But I’d like to get a half inch or so AND maybe even stiffen the ride further.
Couldn’t find anything related to just the springs.

rubi springs are a bit taller. about a 1-1.25" in lift. yes the fox branded rubi shocks suck. the red body OG version is great. I don't know if the Rubi springs are stiffer in rate tho. I know the deisel rubi springs are but not the gasser.

 

[Like-a-virgin]

rubi springs are a bit taller. about a 1-1.25" in lift. yes the fox branded rubi shocks suck. the red body OG version is great. I don't know if the Rubi springs are stiffer in rate tho. I know the deisel rubi springs are but not the gasser.

Do you think the sucky fox shocks would be mushier than my Sport S stock ones?

 

[kevman65]

Do you think the sucky fox shocks would be mushier than my Sport S stock ones?

Yes. Some people will say they are great, they are under valved and wallowy. I wouldn't pay for them again.

 

[Like-a-virgin]

Yes. Some people will say they are great, they are under valved and wallowy. I wouldn't pay for them again.

Thanks for your input. I don’t wanna waste the money getting crappy shocks changed in.

 

[PuddleJumper]

Do you think the sucky fox shocks would be mushier than my Sport S stock ones?

oh definitely. they practially function like they aren't even there.

 

[kevman65]

You can get new Rancho 9000's (adjustable) or new Bilstein 5100's for under $500 and have a better shock.

 

[ShadowsPapa]

I’ve been reading that the fox shocks are too mushy when put onto a stock JTS. Does anyone have any information on what just the springs would do? Would it be an upgrade? Any lift at all?

I like the stiffness of the stock shocks and don’t wanna go softer. But I’d like to get a half inch or so AND maybe even stiffen the ride further.
Couldn’t find anything related to just the springs.

For example, on Overland -
The Rubicon springs I put under the front were a bit shorter than the Overland springs but due to having a higher rate, held the front up about 7/8" over stock Overland height.
The shocks look pretty - and the fronts "were ok" but the rears just felt to bouncy for me - not enough dampening. The ride was fine but if you jounced it, it bounced a couple of times instead of a rebound and settle without bounce.

For example on length - my Overland rears are on top, not wrapped, the Rubicon rears are in plastic - shorter-

it was similar for the fronts - it was harder to get my Overland springs out than put the Rubicon springs in - shorter.
You get the height or lift not from length, but rate.
The weight of a lighter truck won't compress the Rubicon springs as much, so they stand higher.
Rate matters, not just length.
You'll find some will get more than 1" lift with Rubicon springs because there are at least 3 different Rubicon spring rates!
So if you buy Rubicon springs and they are the less optioned Rubicon, the spring rate will be lower, the truck will settle more.
If you buy "Rubicon springs" from a fully loaded and optioned rubicon, they will most likely be a higher rate and hold a lighter load up higher - maybe a 1.25" lift, for example.
I've yet to see anything over that.

So when you say "what if I ...... Rubicon springs" you need to know WHICH Rubicon springs.
And the amount of lift you may or may not get is also based on the weight of your specific truck - a given Rubicon spring number may lift some Sport S by one amount and the next guy gets either more or less lift from the same spring numbers.

 

[ShadowsPapa]

rubi springs are a bit taller. about a 1-1.25" in lift.

Depends on what you are comparing to. They are shorter than some, could be taller than others, and there are several spring rates used on various Rubicon combinations.
Rubicon springs are shorter than Overland springs, for example, but have a higher rate - and the lighter Rubicon springs gave me a whopping 7/8" "lift".
The heavier rate Rubicon springs may have done a bit over 1" but I'd not expect anything over that under an Overland.
It will vary with lighter models, perhaps Sport with manual windows and manual transmission, that sort of thing, would get a higher boost.

 

[PuddleJumper]

Depends on what you are comparing to. They are shorter than some, could be taller than others, and there are several spring rates used on various Rubicon combinations.
Rubicon springs are shorter than Overland springs, for example, but have a higher rate - and the lighter Rubicon springs gave me a whopping 7/8" "lift".
The heavier rate Rubicon springs may have done a bit over 1" but I'd not expect anything over that under an Overland.
It will vary with lighter models, perhaps Sport with manual windows and manual transmission, that sort of thing, would get a higher boost.

depends if you have the max tow package as well. rubi gassers are the shortest compared to all other max tow variant spring i believe, could be wrong. I do know Mojave is the tallest but also the softest.

 

[Erievon]

Do you think the sucky fox shocks would be mushier than my Sport S stock ones?

"Sucky" is subjective. If you don't want any softer then your sport shocks then no, you don't want the factory Foxes that came on 20-22 Rubis. Some people prefer stiffer shocks for on street control. I personally liked the Factory Foxes, they were very bump compliant, where the black and the red shocks are simply not. But some would call that mushy and didn't like it.

As far as the springs, I saw about 1" of total height change when I put them on my 20 overland, but it depends on what weight Rubi shocks you get. The part number tells the story on how tall they will be. The ones I had came off a fully equipped LE with metal front bumper. Theres a thread around here somewhere that kinda breaks down the part numbers on various Rubi springs.

 

[Like-a-virgin]

You can get new Rancho 9000's (adjustable) or new Bilstein 5100's for under $500 and have a better shock.

Man, when I went out to the garage to double check I saw bilstein and was ecstatic, unless I looked in and saw the foxes that the dude had replaced with the bilsteins. He just gave me the boxes to carry the foxes in.

Will getting those shocks along with changing my springs to Rubis require me to made any more mods, like arms and stuff (I’m just learning about this stuff since I got my JT just over two months ago)? I was mechanically totally ignorant.

 

[ShadowsPapa]

depends if you have the max tow package as well. rubi gassers are the shortest compared to all other max tow variant spring i believe, could be wrong. I do know Mojave is the tallest but also the softest.

Mojave is shorter than Overland. I've compared. A couple of years back a Mojave owner sent me the length of their springs, mine were a tad longer.

Max tow springs are the shortest - they are shorter than the Overland rear springs by at least an inch or more.
When I put max tow rear springs under my 2020 Overland, I had a heck of a time working the rear springs out, then once I got the original Overland springs out, the max tow springs sat on the perches with over and inch to spare - I had to raise the axle up a bit to keep them from falling out.
They are higher rate, not longer than Overland and not longer than Rubicon.
Max tow springs will be the rears - and they are shorter, dual-rate, not longer. I added 3/4" spacers under the max tow springs I ran to keep the back up a bit.
The rear dropped by a good 1/8-1/4" with max tow springs compared to the taller but softer Overland springs.

I've done some spring swapping..........

 

[ShadowsPapa]

Will getting those shocks along with changing my springs to Rubis require me to made any more mods, like arms and stuff (I’m just learning about this stuff since I got my JT just over two months ago)? I was mechanically totally ignorant.

Nope - just make sure you loosen both ends of all control arms and both ends of the track bars and torque them back to spec when all tires are back on the ground. Always tighten and torque with the vehicle sitting at the new normal height

 

[PuddleJumper]

Mojave is shorter than Overland. I've compared. A couple of years back a Mojave owner sent me the length of their springs, mine were a tad longer.

Max tow springs are the shortest - they are shorter than the Overland rear springs by at least an inch or more.
When I put max tow rear springs under my 2020 Overland, I had a heck of a time working the rear springs out, then once I got the original Overland springs out, the max tow springs sat on the perches with over and inch to spare - I had to raise the axle up a bit to keep them from falling out.
They are higher rate, not longer than Overland and not longer than Rubicon.
Max tow springs will be the rears - and they are shorter, dual-rate, not longer. I added 3/4" spacers under the max tow springs I ran to keep the back up a bit.
The rear dropped by a good 1/8-1/4" with max tow springs compared to the taller but softer Overland springs.

I've done some spring swapping..........

well I've learned something new. I guess i should get some spacers. I need a little lift low key. So Are the fronts the same? or independent of the rear?

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