B&W (TS20067BMP) MultiPro Tow & Stow  7"Drop 7.5"Rise Tri-Ball 1 7/8"x2"x2 5/16"
 
The MultiPro Tow & Stow has been designed specifically to work with GM's MultiPro tailgate.  Just lock it in your receiver, stow the ball assembly underneath, and you're free to use the inner-gate and step feature of your MultiPro tailgate.
GVW 14,500, VTW 1,450

Currently available for 2.5" receivers, with a 2" model coming soon.