I didn’t use bellows adhesive for the ring side (bell housing side of I joint. I used it on both sides of exhaust bellows, front of I joint bellows and on shift cable bellows.
the ring is easy to install with the tool. Maybe I missed it, but the manual doesn’t specify it.
Just make sure the bellows lip is pushed firmly i to the groove and notice the beveled edge on the aluminum ring. It’s just wide enough to squeeze into the bellows when drivin in with tool.