Wasn't quite sure where to put my Viair 45040 until I found the Tuffy 161-01 Truck Bed Security Lockbox. It fit perfectly and there was room at the end to place the pressure switch surrounded by foam. I need to carve one more piece of foam to keep the pressure switch from bouncing around. Viair Corporation 45040 https://www.amazon.com/dp/B000FQ78VI?th=1 VIAIR 90111 Pressure Switch with Relay https://www.amazon.com/dp/B000FQ793A Firestone WR17602149 Air-Rite Single Cab Control Kit https://www.amazon.com/dp/B000CMGWKI? Ineedup 2 Gallon (8 Liter) 6 Ports Suspension Air Ride Bag Train Truck Horn Air Tank https://www.amazon.com/dp/B0BN7FNS95? Tuffy 161-01 Truck Bed Security Lockbox https://www.amazon.com/dp/B00PWXIIV8? Layout Cutout Rivnuts Tank placement/bottom of the lockbox Airbag valve/compressor/pressure switch Done!
