My ac finally went out on my old pickup and instead of paying a shop 800 dollars ( which is what was quoted to me) I'd figure I'd tackle it myself. I know I got to replace the compressor, dryer and put a new orifice tube in but is there anything else I would need to check or replace? Its my first time messing with an ac system but it can't be to hard. Any input on some do's or donts would be helpful.