Suspension Enhancement To Reduce Porpoising When Towing 30 Ft Travel Trailer w/ 2015 GMC 1500

Question:

I have a 2015 GMC Sierra SLT 6.2 with the max trailering package. I tow a 30 foot bumper hitch travel trailer which is close to 8000 lbs and has a tongue weight of about 900 lbs. I use an Equalizer hitch which keeps the truck and trailer very level with no real sway issues. My only real issue is sometimes annoying porpoising on rough roads when towing, so I was wondering if Ride Rite air springs would help minimize this. If so which kit would I need considering the max trailering package has an upgraded axle and springs I believe? Thanks.

asked by: Chris

Expert Reply:

Of the various suspension enhancement products we offer, the TorkLift StableLoad Rear Suspension Upgrade Kit # TLA7310 is designed to preload the factory overload springs in order to combat porpoising and reduce side to side sway and body roll. The wedge pack is hinged, which allows you to swing the wedges out of the way when you're not towing or hauling. No drilling is required for installation.

I believe this option would be more effective than an air helper spring system.

expert reply by: Mike L