I'm starting to get frustrated with the rattling from my front suspension, and for the life of me, I can't figure out what it is. Here's what it does: it seems that primarily when the front tires hit a sharp bump at the same time (like a small frost heave), something rattles under the front suspension. It happens only when the fronts hit the bump, not the rears. And it doesn't have to be much -- even just a really thick crosswalk tape will do it. On larger bumps, it's all quiet. And it seems like when either of the front tires hit a bump at different times, it doesn't do it.
What I've done: I've replaced a lot. First thing I did was new shocks, Gabriel Ultras. These ride really good with the stock Sport springs. A good match there. But no fix. I also put on new sway bar end links, to no avail. A month or two ago, I torqued down the upper control arm bolts, because I know those have a tendency to loosen up. Just this last weekend, I replaced the lower control arms with ones from someone on this forum, reported to have only 20k miles on the arms. The bushings in the replacement arms look good...much better than my old bushings, that's for sure. I also put in new greasable lower ball joints. When I did that, I also greased the tie rod ends...mine have Zerk fittings. Maybe that means they've been replaced before? I know the upper ball joints are fairly fresh, done at the dealer with Mopar parts not too long before I bought the truck a year ago; they do not have Zerks. When I did this work, I also put in some R/T coils with new Mopar spring rubbers. The ride is moderately firmer now, but it's still pretty good. I torqued everything down after the install, at curb height. And the rattling noise is still there, with the same symptom.
What's not been touched: the upper control arm bushings (with 173,000 miles I'd suppose), and the sway bar bushings.
What I've done to try to narrow it down: early on, I drove around the neighborhood with no shocks and no sway bar, and the rattle was still there. To me, this really sounds like a sway bar thing, but this is not a low clunk sound...something is rattling
, and from the sounds of it, it's small and metal. It sounds very much like you had a small length of metal link chain, and when you give it a quick jab or pull, that's the noise.
Anyone had upper control arm bushings make this noise? That's about the only thing left in the front suspension that hasn't really been touched yet. Well...and the brakes. I mean, they've been replaced
before, but was a few years ago. There's still a moderate amount of pad material left. Would the pads make a jiggling/rattling noise like this?
I'm at my wit's end!
Anyone with any ideas?