So. After 3yrs. and 60k the Pertronix module quit. It was in my driveway so that was good but I didn?t have a spare. I order a new module and found that the mounting holes were too small. So I drill them to the appropriate size, added new thermal paste, and slid the old distributor grommet on the wires and made up the new ends. I found that my old coil was working great but had dropped to .80 ohms from 1.3 so I installed a new ignition coil as well. Fired up and all is well. So I ordered a spare module and grommet from Pertronix so I can have it ready to drop in. So my long winded message is to check you module to ensure the holes are the right size before you need it out in the middle of nowhere someday. Also having a custom bent 1/4? wrench is probably a good call as well.