Kenmore washer/dryer combo

The dryer has the familiar scraping noise when running and I am going to order the parts (upper and lower seal).Are there any other parts I should replace?
Any tricks to disassembly?

thanks

You may want to replace the rear bearing as well. The instructions are attached to the reply.

Gene.
Laundry center - removing the dryer belt and the idler pulley.pdf (181.9 KB)
Laundry center - removing the dryer drum and the ball hitch.pdf (159.4 KB)
Laundry center - removing the dryer front panel and the felt seals.pdf (129.0 KB)