16,000 dollar dump trailer, I may try some more suggestions before throwing it away.

Which bushing are you talking about? Has this bushing ever taken grease in the past?

Sometimes a little heat will open up things and you can pump it back up, if you have seals don't do it .Not sure what your set up is. There is a tool that you can get that you can fill with fluid and it attaches to the fitting and you hit it with a hammer and it will clean the fitting it is called a lock and lube grease buster.

Maybe remove the Zerk and chase the threads with a tap. Could clean things up and push out any clogged grease. I ain't a mechanic.

They're the part where the trailer hinges on the back of the frame. They used to take grease but wont after winter.

Yea I’d say bushing spun. Is there a way you can mark the end of the bushing and pin with a paint marker or file? This will tell you if it’s spinning.

Raise lower multiple times, trying the zerk with few pumps each cycle. If you can’t get it to realign , drill thru the bushing to the pin to allow grease through.

Good luck with it

Buy the tool he is talking about. and heat it up a little.

Farmer here, got about 10 bajillion grease zerts on everything. Sometimes ya just can’t win. Had one on grain cart unload auger. Pumped about 3 tubes everywhere but where you want it over the years. Just quit tryin. Sold her couple years ago still working like a champ.

"Sometimes you cain't tell what's in the pickle barrel til you take the lid offen it." That's what my grampaw always told me.
Tear it down, clean it up, and see whats in there. It'll probly jump out at you.
Or do what farmer tomahawker says and move on.

can you easily take off the bushing ?

No. I'm probably just going to grease it daily, that may give it enough to not cause issues and if it does go fubar I'll cut them out then.