AlabamaChevy

Got 275/70/18 installed today looks good, rides pretty good. Pics coming later to dark now.

I have been on a small spending spree for the truck, I ordered some 275/70/18 Kenda Klever R/t tires, a Gater bed cover, a stubby antenna, bed tie-downs, cabin air filter, Oil change a week ago and they wanted 30 bucks for a filter. Some new 921 reverse LED bulbs. Today the rain set in and had to stop and get some wiper blades of course auto zone wanted to give me the expensive ones, $30 is a little to much for 1 wiper. So the Duralast flex blade which wasnt much less but they fit.

275/70s are a 33.2 in tire and 10.8 in wide, your current tire is 34.8in and 11.2in wide. Depending on how much room you need.

Leveled with RC 2in struts and new pro comps.

Ok, Based on what I found online the brown wire is your wire for the fog light control and the blacks are your grounds. I would check your ground wire the black one's going back and make sure they are not corroded. I have not found where they ground at. 2016-2018 Silverado/Sierra - Wiring Systems And Power Management - Component Connector End Views | Pdf Download (cardiagn.com)

Any chance on just upgrading the front and read to powerstops z36 front and rear?

Stumbled upon your truck on here, the rims looks like pro-comp rockwells series 34 Good looking truck. Pro Comp Wheels Silverado Rockwell Satin Black 6-Lug Wheel - 17x8.5; 0mm Offset 5034-78583 (14-18 Silverado 1500) (americantrucks.com)