The ball mount included with the Curt Class II Receiver would use a trailer ball with a 3/4 inch shank. The shank needs to be at least 1-9/16 inches long.
We offer a 2 inch Hitch Ball from Tow-Ready, part # 19258 that would work great with the draw bar.
I have provided a link to the hitch installation instructions as well as a link to the trailer ball. You can find the links below. view full answer...
The Replacement Right Rear Leg for Lippert Components Ground Control 3.0 Electric Leveling System- Qty 1 # LC344792 has the following dimensions:\
99 inch diameter foot plate
23-1/2 inches tall without foot plate
8-1/2 inches wide at widest point without foot plate
Mounting plate is 6 by 13-1/2 inches with holes 1-1/2 inches on center vertically and 4-1/2 inches on center horizontally
I've attached a couple photos to assist. view full answer...