Well, I don't know...I didn't try it. I test fitted it to make sure I knew where I wanted it....but I didn't reassemble the switch housing to see if that held it tight. It certainly wasn't tight enough. Maybe I didn't need the glue? Try it and see....

 

No, not on the ISO's. They just slide on the clutch side and butt up against the housing.

 

Mine had a rubber lip that went inside the housing...fit in the slot and the housing clamped around it....

 

i went with the green sparkle cheapies just spray brake cleaner inside left grip and slide on fast. plan on cutting off when you wanna change them LOL