John Deere X300 Series Tractor will not move forward or backward. How to repair.

John Deere X300 series lawn tractor is making a loud grinding/squealing noise coming from the transmission area and will not move forward or backward. How to replace the transmission drive pulley. How to replace the transmission drive belt.    • How to Install Transmission Drive Belt Joh...  . How to remove mower deck.    • How to remove a John Deer X300 mower deck  . How to replace mower deck belt.    • How to Replace Mower Deck Belt on a John D...  . Snap ring pliers 90 degree. https://amzn.to/3Zboo6d.