The blower wheel had been previously “repaired,” but the repairman did not install a retaining clip or clamp, so the new part was destroyed in about a year and a half, as the motor shaft rounded all the square edges in the plastic hub. The old blower wheel came off easily and the new part was a perfect fit. The center clamp that comes with the blower wheel kit would probably hold it in place by itself, but I also purchased and installed the retaining clip (#35) as well, because the end of the motor shaft is grooved for it. Everything is solid now, and I don’t expect the new wheel to strip. The drum belt was very worn and needed replacement. The new belt was a little tricky to install at first, but I figured out the easiest way was to drape it over the drum, while the drum was already in place, then feed the lower part of the belt through the pulley system (much better than trying to feed the belt through the pulley system first, then insert the drum through the remaining loop). This requires you to do a little bit of the pulley threading by feel, because you can’t always see it very easily with the drum installed, but it seems the easiest way. I think the belt requires a twist when you install it. When it comes out of the pulleys, the flat side of the belt would naturally lay against the drum, but this doesn’t seem like it would have the proper friction, so after it was in place, I gave the belt a turn so that the ribbed face of the belt was against the surface of the drum. The belt now does a twist before entering the pulleys, and it has worked very well like this. If I got this detail wrong, perhaps someone here can correct it. An unassociated video on this site showed the belt installed with the ridged side against the drum, but it won’t feed properly into the pulley system like this, so the twist seems necessary to make it all work. Perhaps a specific belt install video would be a helpful addition to the site. Belt routing: https://forum.appliancepartspros.com/posts/t25960-dryer-belt-diagrams