old style thermal strips (glow plugs) Need Tech Help!!
 

I have a 1975 300d 115 chassis and I need the old style thermal strips. They are the large diameter 4" and eyelets on both ends.
I ordered some from here recently and they sent me the newer model 1" 50amp filiment type. Also need to know if what the amp readings should be on them. My "mechanic" has had my car longer than I have!!