ok, how about a location for a good rebuild manual?
![Green Grin :greengrin:](https://board.marlincrawler.com/Smileys/marlin/greengrin.gif)
Could it be as simple as the Heavy Duty Bearing Cover Plate that Marlin Crawler offers as a replacement? I wouldn't mind replacing this and installing the heavy duty shifter seat if there is a good chance it will fix it.