I picked up a used D-50 pumpkin but have been told by my rear end guy there is surface rust on the gears meaning some water got in there   He's also concerned about possible/likely noise due to existing wear on the gearing and not being able to match it back up perfectly as it wore into.   Is this a sound concern (pun or not)??   A search for 4.22 came up no match, but I'll try to find the few members experienced in doing this.       I'm also looking for a new set or an existing SQ rear with 4.

I know there was a topic once in regards to this question about rust removal on parts. It was a liquid you submerge ya parts in a bucket and cover the parts completely in a room temp setting and when the process was complete ya hose it off completely with water. It was supposed to be real easy on the skin and rubber seals. I did several checks on the forums with no results. I just found a few which mention cutting out rust patches and BC 99 gas tank woes. Any help on this will be greatly apprec

Let me know if you have one to part with or trade for a 4 wire non-heated motor with lens thanks.

http://www.youtube.com/watch?v=hWljSwA1_3A   Start watching at 4:00 if you can't wait.