Hi,

It's a 3 yr old GE electric extra large
capacity dryer

Model#? Above does little to ID the dryer.

http://www.applianceaid.com/model.html
Some model# helps.

The noise gets worse near the end of the cycle, and is quite loud
and high
pitched

Drum supports ( drum bearing, roller wheels, glides ), idler pulley,
motor are common noise makers on many dryers.

jeff.
Appliance Repair Aid
http://www.applianceaid.com/