So I checked fuses found one blown replaced it turned the heat on blew again pulled out the resistor looked pretty cruddy soi replaced the fuse again and turned the heat on with the resistor unplugged still blew... Any common causes before I start tearing apart the dash?

 

Could be a short somewhere.
Isn't too hard to get to it, you'll just have to remove the lower part of the dash. About 10-12 screws total, including two down below and one behind the ash tray.

 

I'd clean any corroded connections and also look for any frayed or pinched wires.

 

Seems to me that the blower motor itself is the most likely culprit.

I'd do a bench test of the motor before I started looking for shorted wires.

 

disconnect blower and check resistance, should be at least 1.5 Ohm.
You need to check step by step according to wiring diagram.

 

Thanks guys appreciate the help!