Looks like a class II, assuming a 1.25" square. Class III jumps up to 2" receiver. To better answer your question, the class II on your Ranger will work fine towing your Glastron assuming everything is at least class II rated. Hitch, insert, and ball are all either stamped or labeled with rated capacity. Look closely at the coupler on your trailer, it will also be stamped with capacity ratings. To further ease your mind, there is quite a bit of safety margin built into hitch systems.