This one is easy for me to remember...I'm a Chevy guy, focused on V8's from the fifties to the seventies. Back in the day I ran a lot of hot rod big blocks, and they used to be notorious for starter problems (especially with extra-high compression engines), so we were often rebuilding and/or replacing, and/or shimming these starters. I kept several 11/32 sockets and wrenches in my tool boxes for this reason. The small wire lead to the starter solenoid (the terminal which is closest to the engine block wall when the starter is installed) used an 11/32 nut. This was the terminal that you needed to jump across the battery cable lead to bump the starter from underneath, if the ignition switch failed, etc. So, that 11/32 nut was often melted and distorted on big blocks. I kept several spares in my box.