Lippert Flex Air Pin Box Recommendation to replace Lippert 1621 Pin Box

Question:

I have a 2019 GMC Sierra 2500HD 6 1/2 foot bed. I have a 5th wheel travel trailer with lippert pin box 1621 rated at 15,500 lbs. I want a replacement lippert flex air pin box to replace the O.E. solid pin box. Need recommendations on direct replacement unit.

asked by: Terry C

Expert Reply:

Thanks for all the info you listed from your fifth wheel! That makes picking out the correct Flex Air pin box very easily. The part # LC328492 that you referenced is actually the correct Flex Air. The Flex Air is the best performing cushioned pin box out there so you'll be really happy with this!

expert reply by: Jameson C