John Goodman has the seals. I bought them for my RB67's when I got them. There are 3 seal kits you will need if you want to reseal the everything. One for the mirror, another for the rotating back, and a third for the film back. If you have more than one film back, you will have to purchase a kit for each back you wish to reseal. It's a pretty straight forward task to do the seals, just time consuming depending on how easy the seals come off.