remember, you can take as much as you need off to make it fit but you cant add to the puck 
i left them a little "big", greased up the holes, and went to town on the puck with a sledgehammer. once it was in there, then i drilled the hole for the sleeve to pass through.
i left them a little "big", greased up the holes, and went to town on the puck with a sledgehammer. once it was in there, then i drilled the hole for the sleeve to pass through.
