Why Would Trailer with Trailair Pin Box Still Chuck When Towing


Is this airbag. Bigger than the standard 18 k pinbox I get alot of bucking with my hitch wondering if bigger airbag would help


Expert Reply:

Replacing the air bag of your Trailair for 1621 pin box air bag replacement # LC432404 will not affect your ride quality unless the current air bag has failed and keep pressure. This would be the exact same size.

If you are experiencing chucking it's most likely due to the fifth wheel hitch you have not holding the king pin tight enough to reduce movement/chucking.

A fifth wheel hitch that will have minimal chucking would be the Reese Select Plus hitch part # RP30081. This uses a single jaw that wraps and holds the king pin tightly.

expert reply by:
Jameson C

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