yes, then push it into the glue or rtv., wipe off the excess. let it set over night. you can leave it on the car, no need to take it off.
check the clamps every few days, mine fell off a few times. i used the clamps that came with the home depot coupler, they are not auto clamps, and they seem to back off for a while. after a few months its been tight and dont fall off any more.