HELP! rear "thump" after installing budget boost
Thread Starter
JK Newbie
Joined: Dec 2007
Posts: 87
Likes: 0
From: Raleigh, NC
re:
no the shocks are definately mounted right because their is only one way to mount them. I am only hearing the thumping in the rear and am talking about the rear shocks. here are some pics of the setup. Im glad to hear from all of you and really appreciate it. Nice to know this isnt just me! here are some pics of the setup in the rear
http://my.project-jk.com/showphoto.p...86&ppuser=1355
http://my.project-jk.com/showphoto.p...85&ppuser=1355
http://my.project-jk.com/showphoto.p...84&ppuser=1355
http://my.project-jk.com/showphoto.p...83&ppuser=1355
http://my.project-jk.com/showphoto.p...82&ppuser=1355
http://my.project-jk.com/showphoto.p...81&ppuser=1355
http://my.project-jk.com/showphoto.p...86&ppuser=1355
http://my.project-jk.com/showphoto.p...85&ppuser=1355
http://my.project-jk.com/showphoto.p...84&ppuser=1355
http://my.project-jk.com/showphoto.p...83&ppuser=1355
http://my.project-jk.com/showphoto.p...82&ppuser=1355
http://my.project-jk.com/showphoto.p...81&ppuser=1355
JK Junkie
Joined: Jan 2008
Posts: 2,472
Likes: 4
From: Virginia Woods
check your shock length
you can pull one of the new shocks, compress it completely and measure the length compressed.That length less the height of your lift puck should equal pretty closly the length of a stock shock compressed. If your new shocks have been bottoming out the horizontal mounting bracket with the 2 holes will probably be bent....are the black bushings on the shock shaft supposed to be left on these shocks after installation? Do they take the place of extended bump stops? These bushings would definitely limit the shock travel by the same amount of their height, causing the shock to bottom out early. I've changed scores of bent shocks over the last 30 years and have never seen bushings like these on any of them....of course i haven't seen everything- theres always something new coming down the pikeLOL
Last edited by TINMAN080; May 10, 2008 at 09:27 AM.
Thread Starter
JK Newbie
Joined: Dec 2007
Posts: 87
Likes: 0
From: Raleigh, NC
re
yeah those black bushings are in place of bump stops. Do you think its bad that the axle mounts for the shocks are bent? i tried taking them off and wont be able to short of using a pry bar. I may just try fixing those and properly torquing them as rough country originally told me 90 ft/lbs and thats what caused the mounts to bend.
Thread Starter
JK Newbie
Joined: Dec 2007
Posts: 87
Likes: 0
From: Raleigh, NC
JK Junkie
Joined: May 2007
Posts: 2,815
Likes: 0
From: Kingston Ont.
yeah those black bushings are in place of bump stops. Do you think its bad that the axle mounts for the shocks are bent? i tried taking them off and wont be able to short of using a pry bar. I may just try fixing those and properly torquing them as rough country originally told me 90 ft/lbs and thats what caused the mounts to bend.
JK Super Freak
Joined: Oct 2007
Posts: 1,418
Likes: 0
From: Dallas Area, Texas
I had the same problem except I was using the teraflex BB and it was the rear passenger Bump stop the was mounted on the top of the axle. I mounted it backwards and it was making contact with the rear track bar.
JK Junkie
Joined: Jan 2008
Posts: 2,232
Likes: 0
From: SoCal
I just installed the rough country budget boost with the 2.2 shocks and am satisfied with the ride quality. But everytime i hit a bump hard in the rear such as road humps, i hear a loud "thump" similar to loud bass. it is even worse when i have passengers as it happens more. I called rough country and everything is tight but i am still not sure if the rear springs are seated properly. Anyone have pics of a properly seated rear coil with a spacer? since there are no stops for the pigtail in the rear, i dont have a good reference like i did in the front. How should it look on the rubber stop? Any help would be greatly appreciated.
EDIT: well the shocks are definately not bottoming out but does anyone think that the lower shock mounts are too bent? pics are on second page and in my gallery. I may try and bend them back when i get the time. Anyone think it is serious or am i just being paranoid?
EDIT: well the shocks are definately not bottoming out but does anyone think that the lower shock mounts are too bent? pics are on second page and in my gallery. I may try and bend them back when i get the time. Anyone think it is serious or am i just being paranoid?
JK Super Freak
Joined: Oct 2007
Posts: 1,418
Likes: 0
From: Dallas Area, Texas
I couldnt see a problem with the shock but I would take a look at the rear track bar and see if anything has come in contact with it. Seems to be a common problem. Particularly the passenger side but could be either or.