Many parts are still available. Shimano is the best source but I also use Southwestern Parts (
Southwestern Parts & Service - Your Source for Fishing Reel Repair, Parts, and Service! ) for mine. I just rebuilt a trashed TLD 10 a bit ago. Many parts from the TLD 15 fit and it is still in production. Example: you can cut down the drag washer from the TLD 15 to fit. Of course, you could order a carbontex one from Smoooth drag also.