Product review (5 stars): Night and day difference!
I guess we didn't realize how loud the dryer had gotten as it progressively got louder and louder.
We can close the door to the laundry room but now....we don't have to!

If you are slightly mechanically inclined you can definitely handle this yourself. I consider myself pretty mechanically inclined and handy so I watched the video (a few times) and got to work.

It took me 2 hours only because I spent a good chunk of time cleaning and vacuuming the inside and taking apart the heating element to clean it.

The rear rollers are the only pain getting a 14mm socket on the backside. Probably would be easier with just a 14 wrench on it.
I refused the triangle plastic retainer clips but should have bought the 1/2" eclips other reviews mentioned to be safe.

These don't include the wheel shaft...but why would they as you can reuse the old ones. I did clean the shafts and sprayed them will silicone lubricant for better spin (a grease will retain dust, dirt, lint and hair).

I could tell a few of the old wheels were wearing away. Sides were worn away and black rubber dust around the metal surroundings.

Buy all 4 and replace all 4 for preventive maintenance. For a 8+ year old dryer to sound new again...well worth the 45 plus free 1 day shipping!