CM871 things to check after purchase?

[reconxlr]

Wealth of information! Wow thank you all will do all those checks at my local mechanic.
AC not blowing cold enough. I heard that could be as low as $10 fix
Overall truck drove fine from dealer to house 3hours 200mi drive.
Is there a forum that has instructions on how to install {**Content removed by protection bot**}? I could not find one.

Any info on where to get a good mandate?