Seeing I repaired a cooked wire inside this MSD (that I picked up off an auction for 20 bucks) I thought it might be a good idea to carry it as a spare for the one installed on the car for when it craps out, as well as the voltage regulator I swapped out last week. Jack installed and secured, swapping in an iron with a 13/16 socket to fit the wheel nuts vs 3/4" OE.