Hi Lou,
I'm not Mike but here is my take.
First you have to turn a off part of the upper barrel so you can press the center band onto the tube (It is an exterior press rather than interior press) and if you get that too long you end up with a the tube sticking into the center of the CB, or if get it too short then it doesn't look right on the inside. Once you have that right you have to turn the bottom down to specific diameter for a specific length so that it can fit up inside the center band. Too long and you have a gap, to short and the lower barrel rubs on the inside of the CB. Then, when you assemble, you actually have to press a 7mm adapter into the 8mm tube so you can use a standard 7mm transmission. And if you forget that before you get the CB on you need to find a way to press it into place INSIDE the CB (I used a small socket). Oh, and the CB is actually 3 pieces and if you don't hold them all together while pressing it on that last little ring will slip off at an angle and ruin the upper barrel. Did I mention that once on, there is no disassembly of the CB without using pliers on the CB? And the clip is spring loaded so to press the top on you have to expand the clip and then hold it expanded with a tooth pick while you press it in or it will be damaged and/or damage your upper barrel.
Really, that all makes it sound worse than it is. After you've done a few you get the hang of it.
And the instructions are really quite good.
GK
]
