I researched the most common causes for this problem. THen I watched a video on how to disassemble the dryer. Except for some screws that were hard to get out, this was pretty easy.
The first thing I noticed was the amount of lint thruout the dryer! I am surprised it hadn't caught on fire! I looked at the parts diagram and realized that the bearing slides had broken or were not there. I ordered the 4 parts (2 of each). AMazingly, they were delivered the next day!
I replaced the slides and begin putting the dryer back together. This is where I had problems.
I thought I would never get the front of the dryer back on! I ended up with a few cuts on my hand. It was hard to hold the drum up and push the front onto it without almost pushing the new slides off. Finally, after a day or two, I was able to get the front back on. The problem had to do with the bottom left leveler that wasn't aligning with the slot in the bottom of the front panel.
The last thing was to reconnect the vent to the dryer. I did several contortions, upside down and all around but could not get the accordion part to stay on long enough to get a strap on it.
Finally, I pulled out the washing machine so I could get in and connect the vent and strap it on.
The dryer worked when I ran it last night! No squeaking! I hope that I didn't screw up something else with all the stuff I had to do to get the front back on.
I feel so proud that I did this by myself! The parts costs about $20. I am 62, living on social security and retirement. I could not afford to hire someone for this nor could I afford a new dryer.
I don't think a repairman would have bothered to vacuum out all the dust and clean the floor around and under the dryer. Now I know that it is clean inside and out.
I couldn't have done this without the videos and diagrams. Thank you AppliancePartsPros!