The SSM bars replace the lower spring retention plate and are held on by the U-bolts. The shocks also attach to them. Unlike a slapper bar, they are actually clamped to the springs behind the front eye in order to preload the suspension. The amount of preload can be tuned using spacer plates supplied with the bars. They are hearty pieces. For the cost they are hard to beat, but the CalTracs look promising as well.
For a look at how the car behaves with them, check out the video at Ckelly's website,
http://users.abilene.com/~dkelly/hotrod/
<font size=-1>[ This Message was edited by: frankenfords on 1/31/03 2:04pm ]</font>