The last set of Gabriels I came across kept their damping characteristics for about 5K..by 10K they were a shadow of their former selves.

I've fiddled with all the other brands and none IMHO hold up as well as or last as long as Bilsteins.

Best of luck with it!

Jonathan

__________________
Blue Ridge Mercedes
Jonathan Hodgman
http://www.blueridgemb.com/
Enthusiast Service, Restoration & Tuning.
Follow Us on Facebook!
Located in the Atlanta area
Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines.
Mercedes Repair Atlanta