Product review (4 stars): Frigidaire 5304461262 Dryer Maintenance Kit from Broan
I ordered and used this Frigidaire 5304461262 Dryer Maintenance Kit to change out the back bearing knob and seat felt pads and belt on my dryer, due to a noise it had developed.  I really feel about anyone could do this repair, if you would go to YouTube and watch a couple of maintenance videos on the subject as this is about a 2 or 3 on a scale of 10 for difficulty to perform successfully.  It takes about an hour to two hours to complete, based on your abilities, tools you have and if you can move the dryer out of a small laundry room, like I did, into a larger area to get at everything.  Parts go in easily and the felt removal on the front of the dryer section that fits into the front of the drum, being the most time consuming.  I like it well enough, the quiet dryer a lot !