Modified XJ Cherokee Tech XJ (84-01)
All modified tech questions. If it modifies your XJ beyond stock parts ask it here.
Sponsored by:
Sponsored by:

3.5 rubicon express lift rides awful

Thread Tools
 
Search this Thread
 
Old Nov 29, 2018 | 02:20 PM
  #1  
Mv7fd's Avatar
Thread Starter
Newbie
 
Joined: Apr 2018
Posts: 28
Likes: 0
Model: Cherokee(SJ)
Default 3.5 rubicon express lift rides awful

i put a 3.5 rubicon express on my xj and it rides absolutely terrible! Are there any springs i can buy to replace them for a better ride quality
Reply
Old Nov 29, 2018 | 03:14 PM
  #2  
MacRubi2's Avatar
Newbie
 
Joined: Nov 2018
Posts: 3
Likes: 0
From: Colorado
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
Default

I have the same 3.5” lift on mine and yeah it rides a bit rough but I can live with it 🤪

I think the rear leaf packs are really stiff giving the rough ride but not sure if you could remove a leaf or two without sacrificing some ride height

For me these Kumo MT tires that are on it just doubles the rough ride even more
Reply
Old Nov 29, 2018 | 03:28 PM
  #3  
ixanay_on-the_exjay's Avatar
Seasoned Member
5 Year Member
Liked
 
Joined: May 2018
Posts: 283
Likes: 61
From: DENVER
Year: 2001
Model: Cherokee (XJ)
Engine: 4.6 Custom stroker build
Default

It's not the springs it's the short arms (angles) and your shackle angle that are making the ride rougher than you expected. I assume you bought shocks through them too - those should be good. True you just installed Heavy Duty springs on your vehicle but that is why you bought them... isn't it? Unfortunately there is a lot at play when changing the suspension and you'll need to do more research on how to improve ride quality. Changing the springs isn't going to do much, fixing your angles will.
Reply
Old Nov 29, 2018 | 03:54 PM
  #4  
5-Speed's Avatar
::CF Moderator::
Premium Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2016
Posts: 3,540
Likes: 416
From: SoCal
Year: 1987
Model: Cherokee (XJ)
Engine: 4.0
Default

I removed a leaf out of my RE 3.5 leafs and it helped a ton. I think it was the 3rd one up. Also helped level it out since the rear sat too high. I though the front rode pretty good though.
Reply
Old Nov 29, 2018 | 08:51 PM
  #5  
Wabrown's Avatar
Newbie
 
Joined: Dec 2017
Posts: 27
Likes: 6
From: SE Oklahoma
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
Default

I also have a RE 3.5 lift on my '99 and I did the same as 5-speed and removed number 3 leaf from and also 5 (counting from the main as 1). Also, I left the shackles loose with the vehicle weight on the suspension, then I tightened down the shackles. It rides much better with the 4 leaves instead of 6, I still have a good payload capacity.


Reply
Old Nov 30, 2018 | 04:31 AM
  #6  
alwayssideways's Avatar
Newbie
 
Joined: Jun 2018
Posts: 18
Likes: 0
Model: Cherokee (XJ)
Default

I love mine. I have angled fixed lowers and stock upper and it rides really smooth. Do you have stock arms?
Reply
Old Nov 30, 2018 | 06:54 AM
  #7  
caged's Avatar
CF Veteran
 
Joined: Nov 2008
Posts: 7,874
Likes: 100
From: Northern Ontario, Canada
Year: 1990, 1999, 2000
Model: Cherokee
Engine: 4.0
Default

i'm surprised to hear this. i have rode with RE 5.5 extreme duty superflex kit with drop brackets for years and it rode just awesome. i eventually removed the drop brackets and control arms and replaced with staangs fab long arms. i didn't really notice a difference in ride quality. that's just how good the RE kit was, compared to long arms. i eventually removed the springs and installed 8 inch coils and 5.5 inch leaf packs (the 5.5 kit comes with 4.5 leafs and shackles) and 2 inch shackles.

i agree, loosen the bolts, let it sit on it's own weight, then tighten them up again.

my other cherokee has an RE 4.5 inch kit, and it rides great also. the rear is a little stiff, however. but swapping the shocks to bilstein would help tremendously.
Reply
Old Nov 30, 2018 | 10:40 AM
  #8  
Tsaani97xj's Avatar
Senior Member
 
Joined: May 2013
Posts: 688
Likes: 33
From: Maryland
Year: 1997
Model: Cherokee
Engine: 4.0
Default

You need more weight up front or new springs, control arm drop brackets, shackle relocation boxes.

RE 3.5" springs like a lot of the 3" springs have a very high spring rate @~240lbs where stock was ~150lbs. RE is also known for giving more lift than advertised and making your control arms at a steep angle. Stock these arms are almost parallel. Shackle relocation is an upgrade to any XJ and dramatically improves the rears feel though it may take some adjusting to get it right.
Reply
Old Dec 1, 2018 | 12:22 PM
  #9  
unidentifiedbomb's Avatar
CF Veteran
 
Joined: May 2011
Posts: 6,098
Likes: 250
From: DE
Year: 1988
Model: Cherokee
Engine: I6 4.0
Default

RE 3.5" coils are rated for 240lbs, I went with superlift 550s 4" lift with 160lb and the ride is much smoother and no more coils dropping out on the trail from too much flex
Reply
Old Dec 3, 2018 | 03:29 AM
  #10  
Mv7fd's Avatar
Thread Starter
Newbie
 
Joined: Apr 2018
Posts: 28
Likes: 0
Model: Cherokee(SJ)
Default

Reason I thought it was coil springs I’ll hit a bump in the road and it feels like the front is riding on wooden blocks
Reply
Old Dec 3, 2018 | 08:10 AM
  #11  
Boomstk's Avatar
Newbie
 
Joined: Feb 2018
Posts: 17
Likes: 0
From: Higganum,CT
Year: 2000
Model: Cherokee (XJ)
Engine: 4.0
Default

That is strange. I read your original post a few days before I installed my RE 3.5" Super Ride and was worried. But mine seems to drive fantastic. Although it could be because my old springs were inverted and causing me to have very limited travel. It would hit hard on every little pothole. Now I can aim for the holes and barely feel a thing.
Reply
Old Dec 3, 2018 | 08:28 AM
  #12  
Mv7fd's Avatar
Thread Starter
Newbie
 
Joined: Apr 2018
Posts: 28
Likes: 0
Model: Cherokee(SJ)
Default

Yeah mine rides so stiff
Reply
Old Dec 3, 2018 | 08:36 AM
  #13  
WyoCherokee's Avatar
CF Veteran
10 Year Member
 
Joined: Jan 2015
Posts: 1,364
Likes: 37
From: Dont Colorado Wyoming
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Default

what shocks are you running? ive ran multiple sets of RE coils from 3.5 to 6.5 and never had a rough ride issue with them. in fact they have almost been to soft for my liking.
Reply
Old Dec 7, 2018 | 02:18 PM
  #14  
44DSL's Avatar
Newbie
 
Joined: Oct 2012
Posts: 7
Likes: 0
From: RVA
Year: 1998
Model: Cherokee
Engine: 4.0
Default

I have the 3.5" RE lift & Bilstein shocks on mine. Rear sat up a bit when newly installed but settled in nicely. Ride has mellowed too. I think it rides quite well for a lifted Jeep.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jeepnlou
Cherokee Chat
9
Aug 13, 2016 12:21 AM
toyick
For sale
1
Oct 18, 2011 09:01 PM
rickythedragon
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
6
Nov 13, 2010 12:01 AM
sk8ertht540s
Cherokee Chat
27
Mar 21, 2010 09:56 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 



All times are GMT -5. The time now is 02:19 AM.