Dimensions of Trailair Air Ride Pin Box for Fabex 750, 765 and 770, & RBW 7028

Published 11/20/2020

Question:

Do you have the specs length from front holes to kingpin and distance from top holes to bottom of kingpin for UF35-946212. Ive read that I dont want to exceed the length of the original kingpin. Also, I have a new long bed 2020 gmc and am trying to keep the trailer as near as possible to level. The new trucks are getting taller. I dont want the kingpin to be too tall.

asked by: Keith J

Expert Reply:

I reached out to the manufacturer, Lippert, who was able to give me some of the dimensions you were looking for regarding the Trailair Air Ride 5th Wheel King Pin - Fabex 750, 765 and 770, RBW 7028 # UF35-946212.

They didn't have the dimensions from the bolt holes, but were able to provide me with the spec sheet they did have, which shows the length, width, and height, which should be useful for you. As you can see by the accompanying cut out of the sheet, the Trailair Air Ride # UF35-946212 is a total of 41-3/4" long, and measures 17-9/16" high from the top of the mounting plate to the bottom of the king pin.

expert reply by: Kyle S