Cool!
The LST2 shocks will not work unless you do a LOT of modifications! I got 4 of them thinking the same thing and they just didn't work. If you are looking for shock options, I have this page that allows you to compare measurements:
http://scriptasylum.com/rc_speed/_shocks.html
Also, I found that if I set the truck too high, the driveshafts would rub on the front kingpin area when turning. So, I just set it a tad bit lower and then added some preload to the shocks to get the stiffness I liked.