When I turned on dryer it started making a squeeling noise. Now it just makes a humming noise. I took a part and all things turn freely except the motor.
Here are your parts
Replacement parts for Whirlpool LEQ7030KQ1 RESIDENTIAL DRYER | AppliancePartsPros.com
If there is nothing jamming the blower wheel then you probably need a new motor.
If you decide to fix it I would not order anything until you get the motor loose from it’s mounts.
The reason is that often you have to destroy the blower wheel to get it off so you may also need to replace it.
Note: The wheel is left hand (reverse) thread.
Either mark, make a diagram or leave the wires attached.