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Old 5 Days Ago
Hammertone  Hammertone is offline
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Default Jks quick discos knocking

My Jeep has seen several rounds of suspension upgrades and Ive been chasing knocking noises all the way. I had the shorter discos for up to 3 lift, now that Im at 4 I have the longer ones installed. Ive got the ride nice and have eliminated all knocks except for one which happens at low speeds when cornering over a bump. So entering or exiting a driveway I happens every time. If I pull the disconnects the knocking disappears and thinking back, I reckon I must have had the same issues with the shorter discos cause Id never notice knocking while out wheeling (disconnected) but would hear it when back on the he tarmac.
My mechanic says the bushes in the discos are good, but the bloke at pedders says theyre not. They look fine to me. I cant see any where that the swaybar or links are hitting something, but I feel that this is probably whats happening. Any clues?

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spoondog  spoondog is offline
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It's a longshot but does it only happen when you go up your driveway on an angle? My old Jk used to squeak every time I would go over rough ground or go up my driveway on an angle, never if I went up square on. I thought it was the swaybar links because it was quiete as a mouse when they were disconnected but even after changing them out the noise was still there.
I chased the problem for about 2 years and eventually just to make sure I'd tried everything because it was driving me crazy, I tightened the bullbar mounts and the bolts on one side were not very tight which was causing the bar to move slightly and squeak every time I'd go up my driveway. Problem solved. Could possibly be your problem too.

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There is a lot of movement in the bushings in the JKS disconnects, even if the bushes are new, they are still likely to make some noise. I reckon you'll never eliminate them as a source of knocking and will probably just need to get used to it, or turn the radio up a little.

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