Rocksport Long Travel Shocks - Request for User Reviews

Mr. Bills

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I am in the process of compiling a spreadsheet for readily available, reasonably priced off-the-shelf replacement shock absorbers to fit my TJ Unlimited (LJ) Rubicon with approximately 5" of suspension lift. My goal is to find the specifications and part numbers for various shocks that have approximately the same extended and compressed lengths as the shocks I have now which already have the appropriate bump stops. Theoretically, sticking close to the same extended and compressed lengths will make the new shocks a bolt-on operation with little fine tuning necessary. (We'll see how that goes in the real world. 🙄)

My current monotube shocks have the following specifications:

Front
Extended Length 29.3"
Compressed Length 17.4"
Travel 11.9"

Rear
Extended Length 24.8"
Compressed Length 15.4"
Travel 9.4"

The Rocksport Long Travel twin tube shocks for the TJ and LJ have the following specifications:

Front
Extended Length 27.4"
Compressed Length 16.2"
Travel 11.2"

Rear
Extended Length 24.5"
Compressed Length 14.6"
Travel 9.9"

I have searched for clues as to who makes these shocks and how they compare to other shocks commonly used on TJ's and LJ's. Unfortunately I have found nothing definitive. What I have learned is that: (1) OME shocks are manufactured in the Monroe factory in Australia; (2) there are many Aussie offroaders who believe that the OME Nitrocharger and later the Nitrocharger Sport are similar if not the same as the Monroe "Gas Magnum" and "Gas Magnum 4x4" sold in Australia, and (3) there is evidence to suggest that Metalcloak may have contracted with either OME or Monroe to produce the private labeled Rocksport shocks, and that these shocks have similar valving as the now discontinued OME Nitrocharger. I can find no confirmation of this theory, but I did find the following post by Matson at Metalcloak on another jeep forum:


Immediately after stating that Metalcloak is one of the largest resellers of OME shocks in Northern California and that the ". . . OME Nitrocharger Shocks were incredibly popular because of their superior travel and performance," Matson answered the following question:

Do you know anything about the RockSports in terms of valving? Do they offer a firmer or softer ride than the OME's?

"The Rocksports are nearly identical to the OME's in terms of Valving and Travel. We chose the OME originally because they were very similar to our desired valving in the 6Pak Shocks. And since we developed a system around our Dual Rate Coils and 6Pak Valving, we wanted the same performance out of any other shock we introduced to the system. The . . . RockSport Long Travel Shock . . . meet(s) that performance criteria."

See: https://www.********forum.com/f274/metalcloak-gamechanger-w-ome-shocks-1465034.html#post22015577
[Replace **** with wrangler]



If Rocksport long travel shocks are valved similarly to the discontinued OME Nitrocharger shocks that have a reputation for being smooth riding, then these may indeed be worthy of consideration. At $138/pair, a full set of Rocksports is only $63 more than the Amazon price for a set of the Rancho RS5000x shocks currently popular on the Internet jeep forums. [Let's not get into the knee-jerk love/hate for Metalcloak prevalent on some jeep forums - this is a discussion about shocks, not the company that sells them.]

What do you TJ and LJ owners who have direct personal experience with Rocksport long travel shocks have to say about them? There are generally positive comments on the JK boards but not much mention on the TJ side.

@Serbonze, you have them, what say you? On the street? On washboard roads? In the rocks?

And if @Matsonian is reading, what can you tell us about the valving of the Rocksports in comparison to the now discontinued OME Nitrochargers? Which shocks were you referring to in the post linked above, the now discontinued Nitrocharger or the Nitrocharger Sport?


 
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I just saw this and didn’t receive a notification from the tag, so my apologies for the delayed response.

I can only provide feedback based on a comparison to my Bilstein 5100s. The goal in swapping them out was to reduce or eliminate the small event harshness that I was feeling with the Bilsteins, and I’m happy to say that the difference was immediately noticeable on both pavement and washboards.

Here in Florida we don’t have rocks, so I can’t comment on how they perform in that environment.

I too read that comment from Matson and as you asked, what I don’t think has ever been clarified is if they match the discontinued Nitrocharger or the existing Nitrocharger Sport. My understanding is that there is a significant difference in feel between the two.

I was on the fence in buying them because I wasn’t able to find a single review for TJs. With all the hype around the Rancho 5000x I still feel like I may be missing out on something by not using them, but I’m much happier with the feel of the Jeep now after swapping for the Rocksports.
 
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There is a rancho 5000x that is close for the rear. What type of upper mounting are you using in the front?
 
Gollywomper said:
There is a rancho 5000x that is close for the rear. What type of upper mounting are you using in the front?

The front upper shock mounts on my '06 LJ Rubicon are factory.

The longest Rancho RS5000x that I can find with the correct upper mount for the TJ/LJ is P/N RS55255 with an extended length of 26.42" and compressed length of 15.59". Do you know of a longer one? If so, I will certainly add it to my list of shock candidates.

The monotube front shocks I have now are 29.3" extended and 17.4" compressed.

I haven't progressed far enough in my information gathering to determine whether I can use the Rancho P/N RS55255 twin tube shocks or if the 2.9" shorter extended length makes them too short. I welcome any and all input in this regard, however I suspect that the only way to be sure is to cycle the suspension and measure.

The Rocksport long travel twin tube front shocks are 27.4" extended and 16.2" compressed which makes them closer in size to what I have now than the Ranchos, which is why I am investigating them.
 
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I have rear RockSport Long Travel Shocks. Rebound & compression damping is firm; no chassis wallowing after medium & large bumps. The quality of workmanship on the shock body is very good.
 
. . . I too read that comment from Matson and as you asked, what I don’t think has ever been clarified is if they match the discontinued Nitrocharger or the existing Nitrocharger Sport. My understanding is that there is a significant difference in feel between the two. . . .

Thanks for your response!

There are many comments on the TJ forums that the Nitrocharger Sport is noticeably stiffer than the now discontinued Nitrocharger Sport, however the bulk of those comments trace back to one particular individual with a high post count who used to own the old Nitrochargers and liked them but has never owned Nitrocharger Sports and has never reported driving a jeep equipped with them. Those comments are therefore of limited value for my purposes.

We know from many reports by many users that the Rancho RS5000x is a soft riding shock. Industry literature suggests that they are valved for an OEM factory ride. In a perfect world we would find someone who has run both the Rancho 5000x and the Rocksport long travel shocks on the same TJ or LJ who is able to give us a head to head comparison, but I doubt that such a person exists.

I'll settle for someone who can tell us with some certainty whether the Rocksport shocks are closer in ride to the old Nitrocharger or the new Nitrocharger Sport. All I need at this juncture is to be able to rank the shocks I have in mind from top to bottom in terms of perceived ride quality on and offroad.
 
I have rear RockSport Long Travel Shocks. Rebound & compression damping is firm; no chassis wallowing after medium & large bumps. The quality of workmanship on the shock body is very good.

What are you using in front? Why different brands front and rear?

How do the Rocksports do with "small events" or washboard roads?
 
I know who and what posts that you are referring to, I think it’s cut and pasted quite regularly.
 
The front upper shock mounts on my '06 LJ Rubicon are factory.

The longest Rancho RS5000x that I can find with the correct upper mount for the TJ/LJ is P/N RS55255 with an extended length of 26.42" and compressed length of 15.59". Do you know of a longer one? If so, I will certainly add it to my list of shock candidates.

The monotube front shocks I have now are 29.3" extended and 17.4" compressed.

I haven't progressed far enough in my information gathering to determine whether I can use the Rancho P/N RS55255 twin tube shocks or if the 2.9" shorter extended length makes them too short. I welcome any and all input in this regard, however I suspect that the only way to be sure is to cycle the suspension and measure.

The Rocksport long travel twin tube front shocks are 27.4" extended and 16.2" compressed which makes them closer in size to what I have now than the Ranchos, which is why I am investigating them.
No I didn’t see a longer choice for the rancho. That’s why I was asking about the mount style.
 
They do offer a longer shock in the 9000xl, but it didn’t look long enough either.
 
What are you using in front? Why different brands front and rear?

How do the Rocksports do with "small events" or washboard roads?
Bilstein 5160 in front.

To begin with, Rancho's RS5000X was lacking in controlled movement on the street. Subjectively, I became weary and wary of Rancho shocks during a frustrating warranty exchange. https://wranglertjforum.com/threads/recent-bad-luck-with-rancho.14205/#post-235793 The rear RockSports fit my size need, and were economical compared to other shocks I was considering. I chose 5160s for their control performance. Another option on the table was (and is) tuning for road/street control via swaybars.

With the relatively light TJ there're installed on, the RockSports are somewhat compliant over broken pavement.
 
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