I've had this annoying shuddering from my car on uneven pavement for a long time. If one wheel hits a rough spot, the wheel will jerk noticeably and it actually feels like one of the wheels is hopping. Its especially bad on curves and will make the front end stop steering for a split second till things regain proper traction. The fenders also have a noticeable "dancing" to them. I'm fairly sure its the body mounts are fried, but just wanted to get some opinions. Just for reference, suspension info and repairs below:
Shocks:
front KYB GR-2 about a year and a half old. Had them out within the last month, still feel fine. Shocks have normal charge with no slack or stiff spots in thier travel.
Rear: Gabriel Hi-Jackers, on the car when I got it, probably 3-4 years old. In serviceable shape but I think they're getting a bit loose. The air is usually in the 10-30 psi range depending on amount of crap in trunk, etc. Adding more air manually makes the problem worse.
Springs:
front HD sedan coils, 433 in/lb, less than a month old
rear: stock wagon coils, 21 years old from 85MercPark's car.
Front bushings:
All new polyurathane ES parts, installed March 2006
Rear bushings:
upper new rubber installed late summer/early fall 2005
lower originals and fairly dead.
There is a 1" rear sway bar attached to the rear LCA, front is standard wagon stock 1 3/16" hollow with newer rubber body mount bushings and poly endlinks.
All front suspension and steering parts were replaced March 2006. I have recently (this weekend) checked it out again, no play in the ball joints or steering system. Hub bearings are fine. Tires are at 40 PSI on 225/60/16 size tires. They're H rated, less than a year old, with excellent tread remaining.
Its had this problem since before the front end was rebuilt, but it was a hell of a lot worse. Initially I attributed it to dead front suspension parts. Later after the rebuild, I assumed it was the overly tall springs causing the shocks to over-extend, now I don't know wtf the problem is. The only thing that really remains is the body mount bushings which I know to be dead. The rear bushings cause another problem, but thats with the rear axle jumping in curves. This is a problem with the front suspension on straight runs and in curves as well.
Mostly I'm just wondering if other folks have thoughts on things to check in addition to the body mounts and the rear LCA bushings. I'm trying to figure out a source for replacement body mount bushings, but they aren't listed anywhere that I can find. I'm hoping to come up with measurement info somewhere so I can find a compatible bushing from some other application.
Shocks:
front KYB GR-2 about a year and a half old. Had them out within the last month, still feel fine. Shocks have normal charge with no slack or stiff spots in thier travel.
Rear: Gabriel Hi-Jackers, on the car when I got it, probably 3-4 years old. In serviceable shape but I think they're getting a bit loose. The air is usually in the 10-30 psi range depending on amount of crap in trunk, etc. Adding more air manually makes the problem worse.
Springs:
front HD sedan coils, 433 in/lb, less than a month old
rear: stock wagon coils, 21 years old from 85MercPark's car.
Front bushings:
All new polyurathane ES parts, installed March 2006
Rear bushings:
upper new rubber installed late summer/early fall 2005
lower originals and fairly dead.
There is a 1" rear sway bar attached to the rear LCA, front is standard wagon stock 1 3/16" hollow with newer rubber body mount bushings and poly endlinks.
All front suspension and steering parts were replaced March 2006. I have recently (this weekend) checked it out again, no play in the ball joints or steering system. Hub bearings are fine. Tires are at 40 PSI on 225/60/16 size tires. They're H rated, less than a year old, with excellent tread remaining.
Its had this problem since before the front end was rebuilt, but it was a hell of a lot worse. Initially I attributed it to dead front suspension parts. Later after the rebuild, I assumed it was the overly tall springs causing the shocks to over-extend, now I don't know wtf the problem is. The only thing that really remains is the body mount bushings which I know to be dead. The rear bushings cause another problem, but thats with the rear axle jumping in curves. This is a problem with the front suspension on straight runs and in curves as well.
Mostly I'm just wondering if other folks have thoughts on things to check in addition to the body mounts and the rear LCA bushings. I'm trying to figure out a source for replacement body mount bushings, but they aren't listed anywhere that I can find. I'm hoping to come up with measurement info somewhere so I can find a compatible bushing from some other application.
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