Pacbrake Vehicle Suspension for confident towing and load support
Pacbrake vehicle suspension adds adjustable support to keep rigs level and more stable when towing or hauling. You'll find options with internal jounce bumpers and onboard compressors (including phone/app control), plus kits available in 5,000 lbs capacity. They won't pair with SumoSprings that use the factory bump stop perch, and the axle must be supported during frame lifts; also confirm clearance with 5th-wheel or gooseneck hardware.
Installation is straightforward. Removing rear tires can make access easier. Watch for hard lines on top of the frame when routing U-bolts and for gooseneck hardware that can interfere with brackets. Test swivel fittings for leaks before final torque. If using stainless steel airlines, plan their install timing. Some setups are easier if the top bracket is installed last.
No, they shouldn't be used together. Both mount in the same area and use the factory bump stop perch, so they compete for the same space. Pick one system to avoid interference and fit issues.
Support the rear axle when lifting by the frame. Without axle support, the suspension can droop and overextend the bags. Let the tech know to keep the axle supported or avoid a frame-only lift.
They help keep the vehicle and trailer level and can reduce chucking and improve directional stability when towing. Unloaded, some setups may creak or groan more—recheck torque on brackets and verify line routing to help minimize noises.