This gave me enough height to slowly back the pin box in place using the trailer landing jacks for fine adjustment in height. The new pin box came on a wood pallet so I placed my spare tire on the trucks tailgate and the pin box w/pallet on the tire. This time, I didn’t have a hydraulic lift table so I used my truck bed. This is actually the second pin box I’ve bolted on, the first being Lippert’s Flex Air model ( See my blog post detailing the install). You’re going to need some strong helpers, a hydraulic lift or a bit of ingenuity to save your back. Then you unbolt the original pin box and bolt on the new Air Ride. Check the Lippert Website for more information. It has to match the bolt pattern and have the proper distances between the bolt holes and the kingpin. However, if you are a “DIY” guy like me it’s not too difficult at all.įirst, you want to make sure you order the right size pin box for your trailer with the appropriate weight capacity. and requires a torque wrench and a bit of muscle to tighten up the large bolts. Most folks will likely want to have a dealer install the Air Ride as it is quite heavy at around 180 lbs. Note: The Air Ride Pin Box was provided to Love Your RV! free of charge for review. When potholes or bumpy road surfaces are driven over the airbag cushions the blow and the shock absorber dampens the rebound action. Between the jaw are an inflatable thick rubber air bag and oil filled shock absorber. The Air Ride pin box is split into two pieces with a pivot point so it acts like a jaw with movement up and down. The Lippert Components Air Ride Pin Box comes with several features designed to protect our fifth wheel frame, hitch, and truck from the forces everyday towing can throw at them. Why not us fifth wheel RVers? Standard Solid Pin Box How Does the Air Ride Work? ![]() Most commercial tractor trailers utilize air suspension. It only makes sense to have some sort of cushioning and suspension system at this connection point. On many road surfaces, this can lead to an uncomfortable ride and stress on the trailer frame and truck. ![]() This does the job but since it’s a solid piece of steel it directly transfers forces between the truck, road, and trailer. The standard pin box you see on the majority of fifth wheels is solid steel with mounting holes on one end and the connecting kingpin on the other. A “pin box” is the part that connects your fifth wheel trailer to the hitch located in the trucks bed.
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