A/C blowing cold for 20 minute drive. Back in car 45 min. later,A/C not blowing cold, never did blow cold for my 20 minute drive back home. Have never had an issue, suddenly no A/C.

 

Sounds like you had a leak...might have been sudden or the psi passed the threshold that the system will no longer turn in...
Some gen2 cars had a hose rubbing issue... Especially on lowered cars....
A search should get you pictures on where too look....
But servicing and repairing an ac is specialized....so not sure spending too much time with it is worth it...
Some diy ac fixes can cost you big $$$ if done wrong....

 

Thanks for the reply. A few months ago I dropped the front end slightly. I installed coilovers and did notice slight vibration in drivetrain. I may have a hose issue, whatever it is it can be quite hot in Missouri. I'll let you know what happens. Thanks again.