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King Pin Box to Fit Leland AF 7921 Bolt Pattern


Will one of the 16K Reese Goose Box models fit a Leland AF 7921 pin box and would it provide enough cab clearance for a 2018 Ram 3500 Mega Cab Short box? Trailer is a 2004 KZ Durango 29BH.


Expert Reply:

None of the Reese Goose Box models fit the Leland AF-7921 pin box wings/flanges, but there is another solution. There are only two king pins that fit the Leland bolt pattern, those being the Trailair # UF35-946208 5th wheel kingpin and the Reese # ST400-5AS16K 5th wheel king pin with sidewinder turret.

The Trailair is a traditional king pin with an air ride shock which offers a smoother ride, but only traditional limited turning clearance. The Reese 5th wheel moves the rotational point 22" furhter back allowing near 90 degree turns for most truck/trailer combinations. Both of these king pins will require a tratitional 5th wheel hitch in your truck rather than using a gooseneck ball.

The last oportunity would be to have a skilled shop cut off your current Leland flanges and weld on flanges that will accomodate the Reese goose boxes.

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