2022 peterbuilt 389 with the dual air bag front suspension. Have any of you guys put a dump valve type deal to air out the front suspension like in the rear? I know of a few guys around my area that run that type of deal on the PTO switch Where they flip that switch and it airs out the front but have no idea how they did it. Mainly just to look cool when I’m parked somewhere for a while lol not really going to use it for anything else
Front Air ride question on 389
Discussion in 'Trucks [ Eighteen Wheelers ]' started by cmls9333, Mar 1, 2022.