Joined: Feb 2012
Posts: 19,381
Likes: 5,527
From: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
Sliding suspension forks are well known for wear/slop between the uppers and lowers. Low cost ones like pictured likely are on the worse end of the range. This is why on high end forks much effort is taken with surface treatments and bushing design. Additionally the distance (or lack of) between the upper and lower bushings effect the support or slop.
It's very doubtful that you will ever find replacement bushings for this fork for a few reasons. It's doubtful That you'll improve the fork's condition. Keeping it lubed will slow down future wear. Andy.