This Tow Kit is not a one size fits all with. It is the PROPER kit for your Silverado 1500.
Manual Fill Tow Kit as shown. This kit LIFTS your truck 4 from Factory when aired out. Comes with Gauge and 3-Position Paddle Switch. Up turns on compressor to fill bags, release goes back to Neutral.
Hold Switch down and Air Releases utilizing. A mini valve switch on back of air gauge. 1.5" SPACERS LIFT 3". The item "B Air Tow Assist Rear Air Bag 2007-UP Chev Silverado 1500 AIR MANAGEMENT DC100" is in sale since Friday, July 13, 2018. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Suspension & Steering\Lift Kits & Parts".
The seller is "chassis_tech" and is located in Mesa, Arizona. This item can be shipped worldwide.