Guys I took out my evaporator today to clean it since it has never really been cold like it used to be, only get to 50 on the center vents. Originally the compressor went out I replaced it and the drier. But I think I should have replaced the expansion valve also. So this time I would like to get some experts opinion on this. I plan on replacing the Expansion valve this time, but cant decided what to do and far as freon goes. I searched but only found people debating and both sides saying theres was better.

Thanks for the help

89 yota pickup
22RE 261C cam
Tanny / engine rebuilt after 256K
Head machined to RV street spec(EB's)