I personaly wouldn't and didn't glue mine, you'll have to remove them in order to change out your coils down the road.
I drilled a hole through the center of each hockey puck to accomodate a 1/2' diameter bolt. I drilled a 1" diameter hole half way through the top puck so that the bolt head is counter sunk into the puck. Then you drill a hole in the coil mount to accomodate the 1/2" bolt (this is the hardest part, a right angle drill comes in handy, but it can be done with out. Once your rear coils are installed then slip each puck through the coil individually. Stack the pucks on top of each other and ontop of the mount, slide the bolt through a lock washer, then reg washer, slide the bolt down through the pucks, start the nut under the coil mount and tighten from the top.
You need 2 bolts, 4 reg washers, 2 lock washers. Bolt length and number of pucks will depend on the lift (1 puck per inch). Some have used carriage bolts, but this requires you to tighten at the nut on the bottom which is a much harder reach. I personally used a regular bolt, started the nut at the bottom, then used a pair of needle nose plyers to hold the nut while I tightened the bolt from the top.
Entire process from drilling the pucks to finished install, about an hour, and that's including breaks for wobbly pops.
