So on my way to work this morning my clutch fell to the floor and stayed there. I'm not sure if it would be the linkage and this is the first diesel I've ever owned. It's a 92 f250 7.3 navistar.

 

Welcome to FTE!
Check the linkage from the peddle to the cylinder. Push rod may have broke or the clip that holds it may have popped off. If that looks good then check cylinder fluid and check for leaks around the cylinder and transmission, you may have lost pressure. If that looks good you may have a bad slave cylinder

 

OK thanks I'll check when I get off work.

 

Yep have had the push rod come off the pedal before. They sell the clip in the help section at a lot of parts stores.