I have the Drawtite remove-a-ball, no problems easy install... I do like the B&W Turnover though... wish I'd seen it sooner might have gone that way. .
The frame mounts are pretty much the same. . just be careful drilling the frame on drivers side... brake lines, fuel tank etc...
If you have access to a lift use it otherwise jack the rear up support frame with stands and lower axle... also helps to remove spare for headroom...
-Matt