Purpose of Small Ball Mounted to Side of Trailer Tongue

Question:

I baught tgis small trailer from my buddy and i noticed it had this knob welded on the side of the tongue. Someone said it might be a place to mount a spare tire but i have no idea. Could you tell me what its for? Pictures are included.

asked by: Jimmie D

Expert Reply:

The small ball mounted on the side of your trailer's tongue is probably for a friction-style anti-sway device like those shown on the linked page. All of these sway-control devices use a friction bar to help stop trailer sway, for example Reese part # 83660.

Please note that all such friction sway-control devices MUST be disengaged before backing up the trailer or the unit will be damaged.

expert reply by: Adam R