yo greezy...
tha vast majority of our pups have 30" kingpins......
the brand new ones and all of ROADWAY's are on a 36" kingpin setting......
also our landing gear is a bit more inboard so tandems don't clear as easily......
our old tandem tractors have fixed 5th wheels....
the newer ones have 2 position sliders......
the brand new ones have 3 positions....
one for vans.....
one for older YELLOW pups.....
one for new pups and ROADWAY pups.....
a little confusing but, having the 5th wheel in the right hole can make a 2000# difference on the steer.......
hope that sets you straight.....
mikeeeeeeeeeeeee