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Old 03-29-2016, 11:46 PM
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Rough riding TJ

I was in one of my local 4x4 shops today getting some quotes on an upcoming gear swap Im doing and after that I told the guy that was helping me about a problem i was having with the ride of my jeep being extremely rough. I know jeeps aren't going to ride like Cadillacs but mine almost beats ya to death just driving down the road. I just recently installed a 4" Rough Country lift ,that another shop recommended, with Fox 2.0 shocks. The fella told me that he knew what my problem was right away. That it was the RC springs. I was wondering has anybody else had this problem with a Rough Country lift? Or could it be the wrong shock length? If it is the springs can I swap them out for a different kind,like Terra Flex, or do I have to buy a complete new lift? Any info would be appreciated.

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Old 03-30-2016, 12:09 AM   #2
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It's extremely common for shops to cluelessly grossly overinflate tires which will make the ride way too stiff. What size tires are you running and exactly what air pressure is inside them?

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Old 03-30-2016, 01:09 AM   #3
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I second the tire pressure problem'm surprised mine didn't pop. They had close to 90 pounds in my 33 all terrains. I dropped them down to 35 and then again to 28 because the entire tread wasn't touching the road. It helped a lot with steering and some with the beating. I have the rubber pads instead of springs. I thing that is my biggest problem with the rough riding. I was going to ask if I can get some springs from a JK or something and remove the rubber. I have the three inch lift Sun Star I think is the name. Cheap and stiff is what that one is. Bought it from a dealer that had it installed.
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Old 03-30-2016, 07:34 AM   #4
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x3 on tire pressure. Should be in the 26-28psi range.

x2 on RC lifts.

My money is on the latter.
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Old 03-30-2016, 09:54 PM   #5
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Originally Posted by Spartacus03 View Post
I know jeeps aren't going to ride like Cadillacs but mine almost beats ya to death
The reasons they ride rough are low quality "lift kits" and stiff shocks coupled with overly inflated tires.

Lifting the Jeep does change the angles of the control arms to a less than desirable angle which accounts for some increase in perceived stiffness but the majority of it is probably your aptly named Rough Country lift kit and probably the shocks in particular.

There is no reason why a well executed lift using quality components, springs and shocks should not have a pleasant ride on road. Mine does.
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Old 03-30-2016, 10:09 PM   #6
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x3 on tire pressure. Should be in the 26-28psi range.
Where does he say what size tires he's running? The correct tire pressure depends on the size of tire. 26-28 would be fine for something like a 33x12.50 but not for smaller or larger sizes.
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Old 03-30-2016, 11:57 PM
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It's extremely common for shops to cluelessly grossly overinflate tires which will make the ride way too stiff. What size tires are you running and exactly what air pressure is inside them?
Im running 35x12.50x20 Cooper STT pros with 40llbs of air. I have heard of a lot of people running RC lifts without this issue. The shop that installed my lift is owned by a really good friend of mine and he knew that my budget for my lift was pretty high and his shop is not dedicated to just one brand of lift. That's why he went with a RC because he has had very few complaints about them. I know that its not as expensive as some, but I've pretty much upgraded everything on the original lift that can be upgraded. But can anybody answer my spring question? Can I swap out the springs for another brand or do i have to buy a whole new lift? Anyways TJ heads back in the shop tomorrow for my Banks power pack install and hopefully while its there we can get this figured out.

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Old 03-31-2016, 12:05 AM   #8
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OMG 40 psi is WAY excessive for 35x12.50 tires on a Wrangler. Pay no attention to the air pressure molded onto the sidewall, that's only its maximum safe air pressure and not the correct pressure for actual use.

24-26 is the correct pressure for that size tire when supporting a vehicle with the weight of a Wrangler. 24 around town, 26 when loaded with passengers or gear. Lower the pressure to that recommendation and your ride will be dramatically better.

Keep in mind that generally speaking, the bigger the tire the lower the air pressure should be.
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Old 03-31-2016, 12:17 AM
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OMG 40 psi is WAY excessive for 35x12.50 tires on a Wrangler. Pay no attention to the air pressure molded onto the sidewall, that's only its maximum safe air pressure and not the correct pressure for actual use.

24-26 is the correct pressure for that size tire when supporting a vehicle with the weight of a Wrangler. 24 around town, 26 when loaded with passengers or gear. Lower the pressure to that recommendation and your ride will be dramatically better.

Keep in mind that generally speaking, the bigger the tire the lower the air pressure should be.
Ok thanks Jerry. Ill do that first thing in the morning and see what happens.

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Old 03-31-2016, 05:30 AM   #10
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Where does he say what size tires he's running? The correct tire pressure depends on the size of tire. 26-28 would be fine for something like a 33x12.50 but not for smaller or larger sizes.
So how much for 30 inch? I'm running 28lbs
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Old 03-31-2016, 11:25 AM   #11
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So how much for 30 inch? I'm running 28lbs
I don't recall what the factory spec is for 30" tires, something like 30-32 psi or so. The factory installed a recommended tire pressure sticker on your door jamb, it will include the correct pressure for the factory size tires which includes 30".
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Old 03-31-2016, 09:52 PM   #12
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OMG 40 psi is WAY excessive for 35x12.50 tires on a Wrangler. Pay no attention to the air pressure molded onto the sidewall, that's only its maximum safe air pressure and not the correct pressure for actual use.

24-26 is the correct pressure for that size tire when supporting a vehicle with the weight of a Wrangler. 24 around town, 26 when loaded with passengers or gear. Lower the pressure to that recommendation and your ride will be dramatically better.

Keep in mind that generally speaking, the bigger the tire the lower the air pressure should be.
I agree, just lowered my tire pressure In my 35's a month ago. used to run 40 psi. now I run 28psi. as of a month ago, only because I was worried I do allot of highway driving to work. I could tell a difference when I dropped the psi.
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Old 03-31-2016, 11:20 PM   #13
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I agree, just lowered my tire pressure In my 35's a month ago. used to run 40 psi. now I run 28psi. as of a month ago, only because I was worried I do allot of highway driving to work. I could tell a difference when I dropped the psi.
28 is still somewhat high for 35's. Try lowering them to between 24 & 26. Your tires will last longer, and your ride will be better.
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Old 03-31-2016, 11:39 PM   #14
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You had a high budget for a lift and went with Rough Country??? Some friend. Did he also install a drop pitman arm too? If so, you should remove that as well. Should have went with a OME lift or a Currie or MetalCloak lift.

X6 on lowering air pressure.
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Old 04-01-2016, 08:17 PM   #15
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28 is still somewhat high for 35's. Try lowering them to between 24 & 26. Your tires will last longer, and your ride will be better.
Thanks I will lower them more and try it
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Old 04-01-2016, 11:17 PM   #16
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I think I'm having a similar issue since adding my new wheels and tires. What psi would you guys recommend for a 295/70/17 which is about 33" in diameter? Thanks
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Old 04-02-2016, 12:35 AM   #17
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26-28 psi will be about right for your 33's.
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Old 04-02-2016, 12:38 AM   #18
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26-28 psi will be about right for your 33's.
Thank you sir! That explains it, they were shipped to me with about 40 psi
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Old 04-04-2016, 11:57 PM
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Haven't posted in a few days but I checked tire psi again just to be on the safe side with a new gauge. Fronts were 42 and rear were around 50. So I dropped the psi down to 28 psi. Its like riding in a totally different jeep. Ride and handles better. Now to the second part of my question. Since Rough country is such a "cheap lift" can I replace the RC springs or do i have to replace the whole lift at once?

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Old 04-05-2016, 12:08 AM   #20
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Skyjacker's springs aren't the cause of any of Skyjacker's second-tier issues. Changing the springs won't help anything.
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Old 04-05-2016, 01:28 AM   #21
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Ditto on the tire pressure molded into the sidewall. I used to always bring my Ram 2500 diesel home and air down the tires. I would run 40 in front and 35 in rear when running light. I would come back from getting the tires rotated and have 90 to 95 all the way around.

The best way to find out the best tire pressure for your tires for your vehicle is to chalk them. Got to a shopping center and take a piece of soft chalk and rub across the tread of the tire. Then drive it a short distance. If the chalk rubs off the center and not the sides, then you are over inflated. If it rubs off the sides but not the center then you are under inflated. If it rubs off all the way across then it's just right.

If then it still rides rough, look at the springs and shocks.

Don't forget that if you add weight to the rear or pull a trailer, you will have to air up the rear tires to compensate for the additional weight.
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Old 04-05-2016, 06:15 AM   #22
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To answer your question, yes you can replace just the springs. The springs provide the actual increase in height so make sure you get springs designed for approximately the same lift height or your other components may not fit correctly any longer.

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