Product review (4 stars): Bought this kit because my dryer was making a horrible screeching sound
Bought this kit because my dryer was making a horrible screeching sound.  After a bit of search engine research it seemed the most likely causes were the roller guides or the pulley wheel.  This kit came with all plus the belt so I figured do it once and be done.  The other feature I liked about this was it was the actual OEM part, not a replacement so I figured this likely meant better quality.  As I took the dryer apart it appeared to likely only be one of the roller guides and the pulley wheel based on the noise they made and how smooth (or not) they freely turned.  Installed all the new parts and now the dryer is quiet again.  Only time will tell how long these will last but the dryer is about 8 years old so hopefully these last about as long at a minimum.  This repair was a bit tricky but not too bad.  The hardest part was trying to remember how the pulley went and since I didn't take a picture I was going on memory and trial and error of what would work.  Overall once I found the right video online to know how to open up my particular model, it took about 1.5 hours to do so for a non-pro I don't think it was too bad.