Belt broke on old machine.

1. Removed front of machine (2 screws at the bottom).
2. Removed 4 screws from inside the dryer, to take off the blower housing.
3. Removed 4 screws and took out the large metal piece which supports the drum at the front. Removed the drum.
4. Replaced the two rollers that support the drum in the rear. Cleaned the pins they run on, and oiled very lightly. Also replaced the idler roller. I was surpirsed to see that these rollers use plain bearings, not ball bearings.
5. On the front support piece, drilled out the rivets for the glides, and replaced the worn out glides with new parts. Applied a little glue (3M weatherstrip adhesive) to the cork pieces, to glue them to the metal. Attached the plastic pieces over the cork pieces, and riveted in place using rivets that came with the glide kits.
6. Replaced front and rear felt seals. This was not as tricky as I expected it to be. They were held in by metal tabs. Glued the ends where they came together.
7. Replaced the felt blower seal. Glued to the blower housing.
8. Reinstalled the drum, installed new belt, which came with good instructions (luckily).
9. Reassembled front support piece and the front of the cabinet.

I also cleaned the lint from the cabinet and from the vent hose.

In general, the job went without a hitch, and the machine probably has quite a few years left, despite the fact that it's 18 years old. This gives me a good feeling.

I'd say this would be challenging, though, for someone who is not pretty experienced with machinery repair. Also, the cost of the parts was significant enough that it would not have been unreasonable to have opted for a new machine.