I have a stabilizer ball fitted to my car,my mate wants me to move his trailer for him,but he only has the normal greased hitch fitted on it,am I ok to move it for him.?
If you mean it's an ALKO tow ball then yes you can move his trailer. But make sure when you've finished, you thoroughly clean the grease off the ball otherwise it will get into the friction pads on your hitch and render them useless.
------------- Dance before the storm and don't look back to where you've been.
If you can keep your head when all around you are losing theirs, you obviously haven't grasped the gravity of the situation.