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Replacing rear trailing arm bushings? 850

I lifted up my 855's rear end for the first time to start on a spring and shock install, and now I can see why my rear wheels have a LOT of negative camber. The bushings between the trailing arms and body are obviously toast. Hardly a surprise at 115k miles, and having DEAD shocks probably didn't help much either.

I've done this kind of job before, and can see myself taking the suspension parts and new bushings to the local NAPA to have them pressed in. No problemo. Question is, where can I buy new bushings? Can I source a stiffer-than-stock polyurethane version? Any tips and tricks for this job? The Haynes manual is kinda vague, and seems to indicate I have to mess with the parking brake at the center console.

I'm about to remove the carpet so I can check the upper shock mounts. The spring bump stops appear intact. Any other commonly worn-out parts back there?

TIA,

Steve-o








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    Replacing rear trailing arm bushings? 850

    I've never seen worn trailing arm bushings on an 850 to date. What I do see, the main reason for incorrect rear camber is bent trailing arms and that can usually be seen if one carefully looks at them from under the car. When they're bent (reason not known to me, accident, etc?) they must be replaced and they're not cheap.
    Either way, bent arms or worn bushings, your car will then need a 4 wheel alignment to get the rear toe in specs afterwords.








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      Replacing rear trailing arm bushings? 850

      Here's what I mean. This is an image of one "trailing arm" (hope I've got my nomenclature correct!) where it's bolted to the body. The suspension is at full droop. Note the obviously extreme wear to the lower part of the rubber bushing. On close inspection the upper section shows some age-related cracking. The wear shown here is what I believe has some impact on my incorrect negative camber; perhaps the rear springs are sagging a bit too. (Ride height is 0.2 cm lower in the rear than in the front.)

      I'm counting on a full alignment afterwards. Apparently the car did run over something on its right side (cracked front fascia, partly missing rear fender liner, note on front control arm repair ticket that one mounting point on that side is, sheesh, "slightly bent").

      Thanks again,

      Steve-o








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