Help with GE Electric Dryer issues...?

[BigN235]

Been doing some work on my GE dryer recently. I compiled a brief history and timeline of the issues, what I’ve done so far, and where I’m at now. Any advice would be appreciated - I’m mainly looking for feedback as to which part/s might be bad and need replacing or (hopefully) maybe just some cleaning or oiling or something. 
 

Original Issues (in order of discovery):

• Buzzer would go off but dryer would continue to cycle
• Clothes would sometimes take a long time to dry
• Extremely loud, high pitched grinding / screeching noise

 

Replaced (in order):

• Front Drum Bearing
• Glides
• Felt
• Blower Wheel

 

Current Condition:

Loud screeching noise was finally fixed after replacing blower wheel. However, after 5-10 minutes of running the dryer, these issues were observed:

 

• Drum spinning slower than usual
• Not getting very hot inside, but getting hot on the outside
• Smells hot / like burning

 

My girlfriend and I are kind of afraid to run the dryer any longer until we figure out what’s causing this, so I thought I’d ask here. Thanks in advance...

[16345Ed]

Lord only knows. Could be put back together wrong. It sounds like airflow problem. 
 

remove vent at back and test it unhooked. See if there’s any improvement.