BenThere

Yeah, I agree. I took a long look at that stuff, and just looking at the pictures, I can't see any of that Camaro etc. stuff working on my truck. Just can't see any of that stuff fitting on my truck engine. Appreciate BigDogx's suggestion, tho......

Just one. 2001 GMC Sierra Z71. What a great truck! I almost cried when I sold it, but the buyer was someone who really appreciated the truck and how well I took care of it.

I've been looking for some kind of an engine "Dress-Up Kit" for my 6.2L Engine in my 2019 4X4 Silverado. I've given up on internet searches; can't find anything for this motor. Looking for something like a custom intake cover, plastic valve covers, etc. Anybody seen on done anything to dress up the engine bay? Thought about pulling those plastic covers off and painting them myself, but would like to find something aftermarket. Anybody done anything in there or found anything tasteful for dressing up things up in there? Everything in there now is so black and boring.... I do have the factory cold air intake system, not too pleased with that, either.

FWIW..... Specific to the "Replace the Ranchos" with some other manufacturers' shock question, there's at least one good thread on Billsteins (sp) I lurked in for a while. Can't look it up now, but I'm sure there are a few on the subject.

Yeah, those last two examples for sure were actions that manifested the klunking I had traced to the shocks thanks to the Chassis Ears. Don't remember hearing it in the parking spot transition, but those little bumps like where the road pavement ends and the gas station pavement begins, in the parking lot, and rough/dirt roads especially. Big bumps not so much, but those irregular smaller bumps in damaged pavement, pavement patches or transitions, parking lot speed bumps, dirt roads and lots, that kind of stuff really brought it out.

Wow, weird. Now you got me wondering again about my truck...... You say the noise comes from somewhere in the center of the truck, just going over smaller parking lot bumps, but it's just the bumps that make the noise? Any torque/throttle changes that would "play with the play" in the driveline/differential, or is it just the bumps that cause the noise? I'm gonna try it on my truck later today.

Man, my truck didn't/doesn't do any of that stuff in the rear dif. And definitely nothing I can hear in the cab. Mine all came from the front, and, at least so far, the noise that was driving me absolutely bat-poop crazy is gone. I was just like you, driving w/o the music, listening to/for the klunking, trying to identify the source of the noise, unable to just enjoy my new truck. What a delight to have my truck no longer possessed by some evil incubus and Joe Bonamassa back on the Bose. As for the guy in the Tundra, he was staring at your truck out of pure envy despite possibly hearing the noise . Seriously, though, I'm like you, the way you describe the noise ain't right. It just ain't. Our trucks are essentially the same underneath and I don't have that noise (differential). I wouldn't replace the shocks until you can isolate the noise to the shocks, or you'll still have the same noise driving you nutzoid. I'd make sure your service writer takes a ride with you and hears the exact same noise you're hearing in your truck, and then drive a new one on the lot and make it perfectly duplicate your truck's demon. If they can't....... For your issue as for others' in this thread: as I mentioned in the OP, the service department, as stated on the invoice, "Install Chassis Ears and isolate noise to front shock assemblies". Can your dealer perform a similar test, do they have Chassis Ears https://www.realtoolreviews.com/steelman-wireless-chassis-ears/ , install 'em, and seriously locate the noise?

Yeah, mine was unaffected by weather. It just kept clunking through it all; but didn't get any cooler than upper thirties here. Don't let it drive you nuts like I did. i spent too much time looking for it. Glad I finally got the dealer to fix it under warranty. Not worth screwing with it, it's always in your head every time you drive it...... like, "Damn, what is (was) that?? In my new truck???" Just cant enjoy the truck with that In there (your head).

I have the dealer installed factory 2" lift with Rancho shocks. For the last several months, I have been hearing a bumping, kinda clunking sound coming from the right front, most noticeable on bad/rough pavement, speed bumps, washboard, those low storm water troughs in rural pavement, that sort of thing. Was like something loose underneath, loose exhaust, bad bushing, something large not tied down right, something like that. Drove me crazy! I spent time on rough roads trying to pin-point the source of the noise, holding onto various panels in the truck, the ORV mirrors, etc. Jacked it up a couple times and spent time banging on everything with my hands and a rubber mallet. Looked at all the suspension, connection points, bushings. Nothing, everything was tight. Banged on everything else I could imagine making the noise, the bumpers, body panels, the dash, grille, under the hood, in the bed, the camper shell; nothing. Finally took it into the dealer and took a ride with the service writer until I was sure she heard the same thing I was hearing. The dealer had some kind of a "chassis ears" device and finally located the noise coming from the left front shock. Found that the shock had something loose in it; called Rancho and they wanted the shock shipped back to them for "forensic" examination. They checked the right shock and noticed it was starting to do the same thing. The dealer replaced both front shock assemblies, checked the alignment and road tested; shipped both shocks back to Rancho. Got the truck back and the noise is gone. Haven't heard back on what Rancho found. Thought y'all might be interested if you have a Trail Boss, AT4, or the factory lift. I've used the truck off road quite a bit, here in AZ, Utah canyon country, Nevada, some tough and challenging (close to the trucks capability) roads and trails, but nothing extraordinary, nothing hairier than what I've done with my other trucks over the years with no problems. Anybody else had a similar issue?

I put 18" wheels and 305X65 Goodrich T/A's on my 2019 ZR1, with a mild 2" factory lift. I went 18" for one primary reason, I like to air down when off road or spending a lot of time on rough back roads. I run at 35 psi on the road, but go down to 23 -25 psi off road, no lower so the bead doesn't "roll" off the rim. The ride improvement is noteworthy to say the least, less jarring and tail-end bouncing, and the tire just "conforms" to the trail when really 4X4-ing; crawling over the really challenging stuff. The T/A's have a lot of tread on the sidewall and with the lower pressure you just get a lot more compliance with the surface and much better traction. It also really helps in sand which you spend a LOT of time on in this part of the country (AZ, UT, NM, some areas in CO). I also just feel personally that a 4X4 looks better, more "right", with more sidewall on the wheel. The down-side of course, is how far on the pavement you have to go to get a decent place pressure station to re-air. I have had no issues traveling 20-30 miles on the pavement at the lower pressure at 70+mph as long as I keep in mind the lower cornering capability of the truck (minimal). Them damn little plug-into-the- lighter compressors take forever to air up big tires, so I just drive to the closest service station on the pavement. Never had an issue with the tires, and I've been doing it for a loooong time on all the 4X4's I've owned over the years. YMMV......

A FWIW update: Done a few dirt roads and one serious off-road trip into the majestic Sonoran Desert I live in. Off-road included serious articulation on extreme inclines (forgot to check my inclines in the DIT ?); boulders, big rocks, washouts, loose rock, that kind of stuff. Fun! That truck is very capable in pretty challenging terrain. I like it better every day. A little Stevie Ray Vaughn on the Bose made the "test" that much better. Crawled under with a wrench this AM. Mount bolts are still tight. ? Locktite? Maybe........

Why not? Suppose the sleeve inside the shock mount bushing tends to compress or wear just enough that the tension on the bolt is reduced? What if there's some super funky harmonic that develops in that particular location that backs the bolt out? Maybe, since the bolt is not shouldered, it's fully threaded, that the interaction between it and the inside of the sleeve creates a dynamic that loosens the bolt (you can see the marks of the threads inside the sleeve in the photo). Maybe a combination of all of those factors? Danged if I know. Are you telling me that you've never, ever, in your whole life, ever had a properly torqued fastener back off? Like, ever? I sure have..... And, somehow I doubt that a TTY bolt is used on a shock mount...... Anyway, here's the deal: as I said earlier, take it for what it's worth. I'm just passing along my anecdotal experiences FYI. Readers of the thread can check the bolt on their truck, they can even back it out and put some locktite on it just in case, it's easy to do. Or not. It's a lot easier in the driveway to find and check the bolt than it is on Black Bear Pass. YMMV....

I don't think this was a dealer screw-up; although that was, of course, my first thought. But I've gotten to know the suspension tech that did the work on the suspension pretty well, and he's very thorough and meticulous. He takes a lot of pride in his work, and was very embarrassed/concerned that it might have been his bad. I watched him re-torque everything else he did and the rest checked out just fine. It was one of the other techs there that said he'd seen 5-6 other instances of this happening even on stock trucks. Take it for what it's worth. I think I did suggest in my OP that others reading this thread to "put a wrench on the bolt(s) or even pull it out quick and put it back with some locktite." And, yeah, I can go to another dealer for future work, but who knows what you'll get there? And, things are different these days than maybe 5 years ago; getting another dealer to work on your truck that you didn't but from them can be problematic on a few different levels. They can be real pr'ks...... Ask me how I know.......

Almost 10K. Includes some semi-serious off road in Utah, Colorado, and Arizona.

Just a heads up from the "For What It's Worth Department" Started hearing something coming from the back when I went through deep dips and especially going over those speed control bumps in parking lots, like some loose pipe or 2X4's were bouncing around in the bed; and the back end was a little "bouncy". Nothing in the bed, so I crawled under and noticed the top right shock mount bolt was gone, and the top of the shock was whacking the mount, frame, and underside of the bed. I have a dealer-installed factory 2" Rancho Iift on my 2019 Z71 Silverado. Took it in to the dealer, and while it was on the rack I talked with the suspension technician guys. One of the techs said he'd seen 5-6 of these, on stock suspensions and a Trail Boss, always the top right shock mount. Like, it's a "thing" with these trucks. So, just letting y"all know that you might want to keep an eye on yours, maybe crawl under and take a look every once in a while. Maybe even the next time you have it in the air for something like an oil change or something, put a wrench on the bolt(s) or even pull it out quick and put it back with some locktite.