Twin 3116 Cats
Twin 4.3 mercrusers
305 chevy with a alpha one drive
Yamaha 90 HP Outboard
NAPA makes a kit for them and have any size you need, the tool looks like a pop rivet gun but has a special end. You buy the tool for the size you need but they sale the other sizes you might need which fit right onto you tool. Handy tool to have especially if you work on your own boat or vehicles.