Zing, those are the adjustable keyways, I believe. Ask Phil about them. I remember a few discussions about them in the past and they can wreak havoc on your front end.
This is the only bit I could find, bit I know there's more out there:
http://elcova.com/groupee/forums?a=search&reqWords=keyway
BTW, it still won't fit in your garage.
Nope, here's some more stuff in this list:
http://elcova.com/groupee/forums?a=search&reqWords=2+inch+lift
Going to miss you this weekend.