Whiz

Thanks for the response. When I was considering their lift kit, I spoke to them on the phone. I was pretty inquisitive, and they never mentioned a thing about tire size. I *may* have mentioned that my rig came with the 20's.

I did the R/C 3" ... the a-arm version, but I really don't think I got the full lift and still not level. Wished I'd done a 4" or so. I'll probably now have to go back and install and 1" ring spacers. It's high enough that the wife complained about getting into it, so I install a long Club Cab step bar (photo was taken prior to install).

I'd be equally interested. I'd also like to trash the Infotainment system so as to include a TRUE navigation system like my 2013 had. Unfortunately, the Info system is only about 1"-2" deep in the dash so there is no room to cut out that area and install a bona fide nav system. Expensive, but works. I use up a helluva data with iPhone traveling the byways here in the Midwest and West Coast using the nav/map system on the phone. I just got an iPad Air thinking it would work, but still need the cell phone to make that happen. Anyone out there in Chevy Truck land tried cutting out the dash?

The firewall access portal hole (2019 Silverado Dual Cab 4x4) behind the battery is the same size as the one on the driver's side just left (facing firewall) near the steering column. I have used both. They are handy and easily sealed to the elements. I am attempting to run an RG58 cable through the firewall for my 2-way radio, and a couple other smaller wires and really did not want to cut off the radio connector. I can, but running the RG58 leaves no room for other wires. Both the above holes are just fine... for smaller wiring sizes. I will most likely Greenlee punch a 3/4" diameter hole just left of the steering column aera and just left and below the existing pass-through area provided. I did route the previous antenna RG58 antenna cable around the front of the driver's door, and have to redo it because we've gone to a different 2-way. I am using a hood side mount antenna base. My comments were really directed to the folks at GM; to simply provide a plugged hole, perhaps 3/4" i- 1" in diameter for future use. We used to up-fit law enforcement vehicles and sometimes it was a big PITA to run several large diameter wires through those firewalls. Thanks for all the responses. THey are appreciated.

FIRST QUESTION - 2019 Silverado 4x4: Am attempting, fruitlessly, to find an accessible hole in the firewall on 2019 Silverado 4x4, or to locate a convenient drill spot/hole punch location in the firewall to run electrical, 2-way radio wire, etc. These 2019’s engines sit quite a bit further back and the firewall is not easily accessible. Would be nice if GM would consider this and have a plugged hole to access. SECOND QUESTION - 2019 Silverado 4x4: Anyone having an issue with the tailgate popping back up about 5"-6" when it is dropped down?

I bought a new 2019 Trail Boss myself on a Friday and on way back home, I noticed the mirror was "dumb" as you call it. Mechanical seat adjusters, polyurethane steering wheel with no buttons, etc. I cell-phoned the dealer and told them I'd be bringing it back on Monday. Only thing I like about the T/B was the 2" lift. Exchanged the T/B for an LT Dual Cab Silverado. Driving the T/B home, I cell-phoned an order for a new GM OEM mirror with all the bells and whistles, and an new 2019 leather wrapped steering wheel while driving back home (59 miles away). I also installed a Rough Country full 3" lift kit. Boy, with 20" tires and a 3" lift, I was a small chore getting into the truck, so last week I installed a front/rear door step. Got it through some outfit in CA, (eBay purchase) and it is a beauty and so simple to install. Everything matched up. I try to keep the truck looking OEM, and that worked out as well. Now if I can find a shift-point/firmness programmer, I'd be tickled. So far no luck with HyperTech, SuperChips, and Bull Dog. May have to wait a while for that. Also looking for 4:10 ring and pinions, but no luck so far. I live in Rapid City SD (west side of the state near Mt Rushmore) and on the eastern edge of the state is a company who has a contract with GM for their new stuff that doesn't work or is wrecked. They are great to buy from over the years; Nordstroms is their name. I think I paid like $99 for the mirror and a couple hundred for the leather and function button on the steering wheel, neither of which I used because I exchanged the T/B for a new 2019 Silverado LT Dual Cab. No bid deal, and may install the mirror as it has the On Star button and a couple extras. I made the mirror switch on my old 2013 Silverado, and don't remember any problems installing it.

Thanks for the info.

Thanks, I will give them a call on Monday. I have programmers for all my Chevy's, so recalibration of speedo is not a problem, but wise words for other who may consider similar options.

Been that route with two GM dealers here, and no one can give me the exact part numbers I need. I've been told 8.25/8.6, and now a few minutes ago 4 Wheel Parts Inc says GM used the 9.5 and 8.25 "since 2006". Am a bit gun shy to order in a set for ft & rr a=nly to have it on the hoist with incorrect size(s). I'll keep checking and, if possible, tap a GM tech with GM whose know EXACTLY what is needed. I worked in a GM parts department many years ago my senior year of college, so I know that one can be wrong particularly with a brand new body style and thre rumors that GM is now using a proprietary front differential.

My second post as a new member: I want to have the dealer install 4.10/4.11 in my new 2019 Silverado LT 4x4 (new body style). Does anyone know the differential sizes for this particular pickup (8.2, 8.5, 8.6)? I had the dealer install those in my previous 2013 and liked what I got.