rocky321

What would cause one side to chew up like this? 08 GT Vogtland lowering springs and Koni STR shocks

JimC

The springs lowered the car and the bump stop is slamming into the body.

g150rdt

You need to replace them with new ones and cut 1" off the top.

rocky321

Just one side?

Norm Peterson

Is the other side's bump stop damaged at all? If not, either your axle isn't accurately centered or the bump stop was defective to begin with (not too likely, but possible).

Which side of the car are you showing?

How long/how many miles on your Vogtland/STR.t setup? I'm not at all convinced that the STR.t is up to controlling the Vogtland's rear spring rate.


Norm

rocky321

Its the drivers side. The passenger side bump stop is fully intact. 40,000 miles on that setup. I'm leaning toward the STR.t shocks also. They have this "dead feel" to them over road ripples. I was thinking a set of KYB monotubes. Not understanding an axle off center eating up a bump stop though?

Norm Peterson

The bump stop might not be getting hit squarely at its center point, which means that contact would try to tear it as well as compress it.


Norm

rocky321

Got it! I ran a plumb line from each fender and measured from the rim lip to the line, and its dam near exact. I know you like the Koni yellows. Any other suggestions?

Norm Peterson

Bilsteins are a good choice if adjustability is not too important to you. Some people are adamant that a monotube design is inherently better than a twin-tube design, but adjustability does have its advantages.


Norm