Replacing Lippert Trailair Flex Air Pin Box Air Bag and Shock Assembly Tips
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)
Products Referenced in This Question
Replacement Shock for Trailair Air Ride and Flex Air 5th Wheel King Pins - Qty 1
- Accessories and Parts
- Fifth Wheel King Pin
- Shocks
- Trailair Pin Box
- Flex Air Pin Box
- Lippert
more information >
Curt Flex Air 5th Wheel Pin Box - Lippert 1621 - 18,000 lbs
- Fifth Wheel King Pin
- Upgraded Pin Box
- Absorbs Road Shock and Reduces Chucking
- 18000 lbs GTW
- Fixed Turret
- Lippert 1621
- CURT
more information >
Product Page this Question was Asked From
Replacement Air Spring for Trailair 5th Wheel Pin Boxes - Qty 1
- Accessories and Parts
- Fifth Wheel King Pin
- Air Springs
- Trailair Pin Box
- Lippert
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Trailair Rota-Flex 5th Wheel Pin Box - Lippert 1621 or 1621HD - 18,000 lbs
- Search Results: cover
- Q&A: Lippert Rhino Pin Box Replacement Recommendation
- Shop: Installation Bolt Kit for Gen-Y Hitch 5th Wheel Pin Boxes and 5th Wheel to Gooseneck Adapters
- Shop: Lippert 1621HD 5th Wheel Pin Box - 18,000 lbs
- Shop: Replacement Wheel Bolts for Husky 5th Wheel Installation Kits - 4 Bolt - Qty 8
- Shop: Demco Autoslide Locking Plate for Lippert Rhino Pin Boxes
- Video: Lippert 1621HD 5th Wheel Pin Box Review
- Video: Lippert 1621HD 5th Wheel Pin Box Installation - 2010 Starcraft Homestead Fifth Wheel
- Shop: Solera 18V Power RV Awning - 16' Wide - Rechargeable Battery - White Fade
- Shop: Solera XL 12V Power RV Awning - 12' Wide - 9'8" Projection - White Fade
- Video: Review of Lippert Fifth Wheel King Pin - Upgraded Pin Box - LC65VR
- Article: 4 Steps to Choosing Your 5th Wheel Pin Box
- Q&A: How To Determine Which Pin Box I Have and What Replacements Are Available
- Shop: Fifth Wheel Hitch
- Search Results: awning
- Shop: Trailer Hitch
- Article: Sidewinder with Rotating Turret for Short Bed Pickups
- Search Results: pin box
- Q&A: Does Truck with 6-1/2 ft bed Have to Use Slider Hitch for Turning Clearance with Fifth Wheel Hitch
- Article: Trailer Wiring Diagrams
- Search Results: slide~out awnings
- Shop: Trailer Wiring
- Shop: Suspension Enhancement
- Article: Gooseneck to 5th Wheel Adapters
- Search Results: slide topper
- Q&A: How to Determine the Pin Box Manufacturer and Model on a 5th Wheel Trailer
- Video: Choosing the Best Fifth Wheel Hitch
- Q&A: Compatible Replacements For A Lippert Rhino Box Pin Box On A 2021 Cedar Creek 37MBH
- Shop: Gooseneck Hitch
on Accessories and Parts
