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LR UCA's - squeaking again

Discussion in 'Suspension' started by PoweredBySoy, Sep 26, 2016.

  1. Sep 26, 2016 at 5:15 PM
    #1
    PoweredBySoy

    PoweredBySoy [OP] Well-Known Member

    Joined:
    Nov 10, 2014
    Member:
    #142066
    Messages:
    1,846
    Gender:
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    First Name:
    Jesse
    Minnesota
    Vehicle:
    2013 DCSB SR5
    About 5 months ago both my my UCA's where squeaking pretty bad over large humps and while flexing. I took it to a shop and they tore them down, lubed up the bushings, and they were smooth and silent again. But now they're already starting to do it again.

    The SPC FAQ says the following:

    Q1: I have the new SpecRide™ bushings. Why is my front suspension squeaking?
    A1: If you used the INCLUDED grease packet, and greased both the inner surface of the bushing and the sides where the included flat washers contact the bushings, you can rule out the bushings as being the cause of squeaking. Check torque on the cross shaft. Check other suspension components (poly sway bar bushings, shock eyes, etc. will squeak.) If you used grease, but not the included grease, your arms could be the culprit. You MUST use the supplied grease!!! It contains a very high percentage of Molybdenum Disulfide in a synthetic grease carrier. The supplied packet of grease should be plenty for the job, but if you need more, CV Joint Grease is available at any auto store. This is the ONLY grease approved for SpecRide bushings.

    Q2: I have the rubber bushings in my arms, why is my front suspension squeaking??
    A2: The most common installation error we see is that the stock dished washers on each end of the long bolt holding the upper control arm are installed incorrectly. They have a bit of an offset and should be installed so the gap between the washer and the rubber bumpers on the sides of the bushing is as large as possible (≈1/8"). If installed the other way, the washers will constantly contact the rubber on the ends of the bushings, and can cause a squeaking noise as the suspension moves. A squeaking noise can also come from the bushings and washers if the long bolt has not been properly tightened to OEM specification.​


    Sorry for the crappy pics, but can anybody tell if the above applies to me? I'd like some verbal ammo for when I take it back to the shop.

    Thanks for any help.




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