Hi Dave,

The KONI has 3 little bumps near the top of the body that are forced into the strut housing when you install them at the stock length. When I put in the spacer, I used 3 radially located shims to do the same thing.

Fortunatly our struts aren't really struts, they are a form of coil-over shocks. The suspension side forces are absorbed by the upper and lower A-arms. The strut only sees the side forces from the coil spring ends not being perfectly supported.

I don't think that there would be a problem with wiggling around unless you extend it more than 3 or 4 inches.