I got an extra 3/4" out of my new shocks and now they dont top out over speed bumps now. Just need a 1/2" ID pice of black pipe. Took about 15 mins and cost about $2.00. I cut the pipe into a 3/4" that all I could get and still get the nut on.

 

sweet deal, and good idea. a number of places sell a thing just like that, but it costs like $30.

edit: now i see what you did. the ones that are sold only screw onto your shock, and will extend it by 2"