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Yes. Like I said, I can't adjust them with the tools I have. I've tried.

I installed these on my 2018 1500 crewcab LTZ. It leveled the truck. FOX 2.0 Performance Series Shocks (985-02-018-FULLSET) I also tried to adjust them to get a little more height to clear the tires, but no manual spring compressor tool was going to do this. The spring is under a lot of pressure and getting it unloaded from the adjustment screw probably requires a strut/coil over compressor (more like a press). Not used one yet, so no knowledge.

35k miles, so I changed the transfer case fluid. Looks like the magnet has been doing its job

The damage would more likely be in the transfer case, and not the transmission. Going straight on freeways in 4hi won't do much more than generate heat and break down oil life. Turning on dry pavement will bind up the front wheels and could cause axel or gear damage. But like previous responses, if it runs still, it didn't do much damage. if you haven't changed the transfer case oil since then, I would.

By upgrade, do you mean the sub, or all 7 speakers? "Plug and Play" is a loose term. ? I "plug and played" my door speakers (to start off), with relatively low impedance Focal speakers and it was fine. Better. Not great. Fine. The sub is not really PnP, because it is integrated into the Bose amp (mine was mounted on the rear cab wall). It can be replaced, but you need to make sure the replacement gets the right signal and has its own amplification. I think Kicker has a product for "just sub" replacement in the center console, or under the rear seat. By the time I got to my sub replacement (JL Audio Stealth), I had already replaced the Bose Amp with a pair of JL Audio amps (huge improvement), and upgraded dash speakers (much better mids). That meant installing a NavTV processor that allows the aftermarket amp stuff to use the headunit signals but keep the door chimes, phone, and environment sounds. There are other similar solutions out there now. At that point, replacing the JL Sub in the center console was PnP...and is an awesome upgrade.

The open window message pops up for me when I leave the battery disconnected for a while. The other messages are similar to my experience in a suburban with a bad battery and corroded ground cable and grounding location. Replacing both, I never had the issue again. Good luck. Hope the dealer sorts it out.

Thanks. Leveled with Fox coil overs. Replaced w/ 2.25 inch blocks in the back. 275/70 r18 Nitto Ridge Grappler (33.2 x 10.8). Top of the fenders are 39.5-40 in the rear, and 38-39 in the front. Its twisted though...in the front the right side is taller, in the back the left side is taller. Only by ~1/2 in. Never bothered to fix it.

Fixed the vibration I had. So far so good, but still waiting to see. It did great picking up mulch today though.

I bought, installed, and like! Impressions: 1) Soler offers awesome service and stand behind their product. I was picky and wanted a "like for like" part number in my swap, even though I sort of knew the older part number (pre-2018) and the newer part number 2018+, were practically the same. They had no problem with this and offered to send me another unit that was my same OEM part number. 2) the porting looks great and you can tell why this would help. They do a nice job on the finish work. 3) This is not a huge jump. It is subtle, but very noticeable. The throttle response and engine power feel quicker, and more smooth in building up to WOT. The idle at stop is smother as well. I am not positive, but I also have less engine knock at WOT. This had developed in the last few thousand miles and was something I meant to fix with BlackBear re-tune, or further investigation. After the swap, and a couple hundred miles of driving (empty roads make good WOT runs), the ping is gone. Maybe better air flow, maybe something else. I have the 6.2L engine with 32k, don't have a CAI, did replace the stock muffler with a MagnaFlow, removed the flapper, left the resonator, and tuned with BlackBear. I really like the truck's performance. I'd buy the Soler TB again, and would recommend it if you have the money to spare.

Transmission Fluid Flush - bulletin #18-NA-355

I'm right around 34K, and just had the transmission fluid serviced by dealer to try to resolve a vibration. Seems to have worked. Other than that, no issues.

Being close to Kirkland in the beginning was odd, but being at home provides more shop time. Spending more time on my son's older jeeps than mine, so have not been posting as much. A 3-4 inch lift seems like it might be just the thing ? How's down south? How's the Centennial?

What size lift to fit the 34s? What width are the 17" wheels? Great look!

275/70 r18 Nitto Ridge (33.2 x 10.8)

From LA to Seattle...so far the 6.2 is making easy work of it. Sent from my SM-G960U using Tapatalk

On my 2018, the dash speakers are a separate channel and play the door chimes and environment sounds. So replacing those can be important to matching the others. I also changed the door speakers from coaxle to separates and moved the tweeter to the sail panel. Huge improvment, but even more after adding aftermarket Amp. But that's were cost starts to balloon. Sent from my SM-G960U using Tapatalk

I have the center console JL Audio Stealth Box sub. It sounds awesome. Very tight bass and plenty of volume for me. Can easily shake rear view mirror, but doesn't seem to cause stuff in drink holders or trays to rattle. I powered it with a JL Audio 500 watt amp. Would for sure do it again, but add the remote level knob. Sent from my SM-G960U using Tapatalk

You might be able to "back into" a number though, because CrewCab 1500s are assembled in Mexico, where as Regular and Extended cabs are assembled in US, along with Heavy Duty. So if you can find yearly sales numbers for each of those models, and add them up, you could answer the question: are more Silverdos assembed in the US or Mexico. Canada is not listed as an assembly point in the articles I read, just engine building, and parts. Edit/Add: Looks like in 2016 there were 574,000 Silverados sold http://gmauthority.com/blog/gm/chevrolet/silverado/chevrolet-silverado-sales-numbers/ And they estimate that 222,000 were made in Mexico. https://www.dallasnews.com/business/autos/2017/02/10/made-mexico-popular-us-vehicles-produced-south-border

I did a similar mod on my 2018. I had a 2012 Suburban that had this fill tube extension, so I bought that part number and added it. It took some modifications because the 2012 version had a "detent" on only one side as it twisted on, and the 2018 caps have the detents on two sides. So, I Dremel-ed in a slot on the tube for these detents to ride. That made it fit. But, since it was not very precise in locking in, it wiggled a lot, and was hard to keep the tube in place, while trying to remove the cap, which fit tight. Given the catch can location on my 2018, it made removing the tube difficult because of its angles during rotation. I sort of gave up for now. But here were my details and some pics: Bought one of these - Dorman 917-412 (tall) or Chevrolet PerformanceOil Fill Tubes 12559505 (short)

GM makes a lot of vehicles in the US: https://www.cars.com/articles/carscom-2018-american-made-index-which-cars-are-built-in-america-for-2018-1420700348293/ But maybe not the most American made vehicles (parts): https://www.cars.com/american-made-index/

It basically the exact same for your car as it is for an email account or phone. Just think of "your car" as "your cell phone". They both track where they are, and let anyone with the right password to see that information. Your wife, spouse, parent, friend, etc, can't see it unless you set it up and give them the password. Who ever has the password to the car, gets to see the info about the car. It not just an open app anyone can browse to any car, or even a car in your family, unless you all share passwords (like Netflix ). If someone can't explain to their spouse that they want their own password on their phone or their car, that's not really a scary technology issue.

Ride quality over the Z71 shocks and springs was night and day in my opinion. I took a 500 mile trip right after buying the truck on stock. I hated the stock suspension. My biggest complaint was hitting any kind of a bump, rut, or pothole while corning. The truck would bounce on the springs and loose traction, giving you the feeling like it might just drift off the road. Even speedbumps and potholes at low speed were very exaggerated. The Fox Coilovers resolved all of that and gave the truck a much more controlled feel. Not smooth like the MagRides in the Denali’s and High Countries, but still great for a daily driver, yet stiff enough to take offroading, and take washboards at speeds.

I have a similar setup and love it. I went 33x11 Ridge Grapplers just because I like narrower tires for rain and snow. Price seems OK, but I got a full set of the Fox PS2.0 from mrtmotorsports.net for $910 last April. Install is fairly easy (rear is dead simple, fronts a little more involved). So maybe bargain with them some, since that a lot of labor cost, unless they include a alignment (which you'll need).

Damn! If I didn't already own a 2018, I'd fly to get that one. Go for it. I am dying to own or build a SC truck some day.

"They" are the company that get sued by the lawyers us customers hire when we hurt ourselves, but don't blame ourselves. There is no big brother. Just a legal system setup to reward coffee spill-ers, and a government setup to provide teats. Welcome to the "land of the free".