Replacing Lippert Trailair Flex Air Pin Box Air Bag and Shock Assembly Tips
Published 12/04/2021
Products Featured in This Question
Question:
Are there any videos, written instructions, tips/tricks for replacing my TrailAIr pin box air bag? Mine is starting to show weather related wear and if nothing else, I would like to remove and give the bag a thorough inspection. Also should I consider replacing the shock absorber or at least the rubber bushings on the shock at the same time. It looks like a fairly straightforward job, but I dont want any surprises! Thank you
asked by: Francis M
Expert Reply:
While I do not have any videos to offer you showing how to replace the Air Bag # LC432404 and Shock # LC177223 on your Trailair Flex Air 5th Wheel Pin Box # LC328492 I do have some tips that will help you.
If you have access to a transmission jack or work table that will match the height of your pin box that will be the easiest way otherwise I recommend doing the work from your bed with the pin box locked in the hitch to support it(Make sure the trailer is still supported by the landing gear). Once you have the trailer set and some way of controlling the head drain the air pressure from the air bag. You will begin by removing the shock bolts to remove the shock. Then remove the upper air bag mounting bolts. Next you will be able to lower the jaw to be able to access the air bag by either lowering the jack or raising the camper. The air bag will slide toward the drivers side and then be able to be lifted from the lower jaw.
Installation will be reverse of the removal.
I would just replace the Shock # LC177223 as an assembly. This part will wear down over time and begin to leak. Good preventative maintenance is to just replace the shock if you are unsure of its condition.
(click to enlarge)
Product Page this Question was Asked From
Replacement Air Spring for Trailair 5th Wheel Pin Boxes - Qty 1
- Accessories and Parts
- 5th Wheel Pin Box
- Air Springs
- Trailair Pin Box
- Lippert
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Search Results: recent orders
- Shop: Replacement Shock for Trailair Air Ride and Flex Air 5th Wheel King Pins - Qty 1
- Shop: Replacement Air Bag for Lippert Center Point by Trailair Suspension Upgrade System - Qty 1
- Search Results: accessories and parts
- Search Results: air ride suspension 5th wheel pin box
- Search Results: 5th wheel pin box
- Search Results: 5th wheel pin box cover
- Search Results: 5th wheel pin box accessories and parts
- Search Results: curt helux pin box
- Shop: Replacement Air Spring for Firestone Ride-Rite Kit - Double Convoluted - Model 224C
- Shop: Replacement Pin Box Tank Valve for Lippert or UltraFab TrailAir Pin Boxes
- Video: All About the 5th Wheel Pin Box Cover for Lippert 1621
- Shop: 5th Wheel Pin Box Cover for Lippert 1621 - White
- Shop: Replacement Air Spring for Firestone Ride-Rite Air Helper Springs Kit
- Q&A: What are the Size and Weight Differences of the Curt Helux and Reese Goosebox Pin Boxes?
- Shop: Curt Helux Shock-Absorbing 5th Wheel Pin Box - Lippert Rhino - 18K GTW - 2,950 lbs TW
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Shop: Trailer Hitch
- Article: Trailer Wiring Diagrams
- Shop: Trailer Wiring
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Shop: Suspension Enhancement
- Article: How to Measure for Trailer Hitch Drop
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Video: How to Choose a Trailer Brake Controller
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Shop: Brake Controller
- Video: A Look at the Power Mountain Tallboy 6 Ton Off-Road Bottle Jack with a Military Cargo Trailer
- Q&A: Does etrailer Carry Furrion Chill Cube w/ Heat Pump to Replace Dometic Duo-Therm
on Accessories and Parts
