Buying Advice John deere 2520 - things to check for when buying?

[njmike]

Hi I'm new to the forum but am considering getting a used 2006 John Deere 2520. Based on other posts in the forum it seems the two major issues were the 3pt drag links rubbing the tires and front axle leaks. For the drag links I saw some posts saying it was covered under warranty. How can I know if a machine has the new, updated drag links? Any pictures would be appreciated.

Are there any other major items I should look for on this particular model?

Thank you!