I just removed the 3" rear / 2" front blocks that were installed by the sheriff's department which owned this Tahoe previously. Now the rear springs are just resting on the axle with the vehicle on the lift. From everything I've read, the springs are supposed to be 'wedged' in place requiring the disconnection of the shocks and swaybar links to allow for their removal / installation. I know they are about ½" shorter than normal from wear, but this seems very sketchy. Any help with this will be greatly appreciated.
On a side note, if anyone is interested, these spacers are available for sale if anyone wants to lift their vehicle.