Question:
why is this pin box not recommended for use with a q series curt 5th wheel?
asked by: Jeremy L
Expert Reply:
The reason that the Trailair Rota-Flex 5th Wheel Pin Box # LC328330 is not compatible with the Curt Q Series 5th wheel hitches is that the head units on those hitches are spherical, which means they don't offer enough stability to be used with the Rota-Flex's cushioning. The same goes for the E-series.
You would need to use the Curt A-series like the Curt A20 5th Wheel Trailer Hitch # C16140 which is compatible with the Trailair Rota-Flex 5th Wheel Pin Box # LC328330.
Curt A20 5th Wheel Trailer Hitch - Dual Jaw - 20,000 lbs
Trailair Rota-Flex 5th Wheel Pin Box - Lippert 1621 or 1621HD - 18,000 lbs