[ls1ac]

FYI
When you back off the collar, let the suspension drop down to the stops. If the springs are moving around and this is the height you want, you should get a set of keeper springs. These are soft flat springs that will keep the collars from moving around. In the case of the AVO's the top collar has a gap for spring removal and if the springs are set too far down it can fall out at full extension.
There are two types of Bilstiens, one sent on the new cars and the racing type by Dennis.
scott