I need help getting my oil leak problem fixed on my 95 chevy k1500

What is your question?

I have had a pretty bad oil leak for quite some time now and I really need to get it fixed. I can't tell where at and I want to know some main places I should look because there is oil over a lot of equipment on the undercarriage part I wiped it then drove it again an then it was back all over where I couldn't get an idea I would show pictures but don't know that I can thanks for the help ahead of time!