2004 Oldsmobile Bravada "thread stuck device driver" Questions

...thread onto the plug tip so you can use the plug with Leads like you have or with the type of leads mortorcycles have where you unthread the metal cap and connect the lead to the threaded end only. I ...

device should be able to do this. IMPORTANT! There is a "Hidden" C clip (snap ring) behind the outer clutch plate! ( I did not know this until I broke the end of the compressor nose off by pulling the