Originally Posted by keymastr
I have no personal experience with goosenecks but I have heard that the adaptors can void your warranty because they add stress to the pinbox supposedly. With a short box you may need to look at slider hitches so you have enough clearance to the cab.
Right on both counts. With an existing GN setup, there are two options that are better than the adaptors that add leverage to the frame. And it isn't just about voiding a warranty, frame failure w/o a warranty will be very, very expensive.
The 1st, is the B&W Companion fifth wheel hitch which attaches to their GN setup. The other is the Andersen Ultimate hitch which is an elevated ball mount that also attaches to the floor GN. Inexpensive, light weight and easier to see the elevated ball compared to the normal floor ball.
While neither is a slider, many short bed truck owners manage just fine w/o a slider, especially with today's fivers with notched front caps.
If the OP feels a slider is really important, there are numerous manual and several auto sliding hitches. Finally as an alternative to heavy, expensive and bulky auto sliders, a simple fixed hitch can still be used in conjunction with the Reese Sidewinder pin box.