Download Service Request Form Here
Performance Shock, Inc is the premier racing shock absorber sales & service center in North America. We are Officially Authorized and Certified to sell, repair, modify, rebuild and re-valve AST dampers to factory specifications and requirements using only OEM parts.
AST Suspesnion Website
All dampers are tested and calibrated with our state of the art Roehrig shock absorber dynos once serviced.
Please use our Contact Us Form or call (707) 938-5664 for Customer Service to discuss you shock rebuild and service requirements.
Shocks can be shipped to our Sonoma Raceway Service Center via UPS, Fedex, DHL, US Postal service or any other common carrier. Our Address is:
Performance Shock, Inc
29139 Arnold Drive
Sonoma, CA 95476
Please include a copy of our Service Request Form.
Remove all springs (unless you want them tested) and mounting hardware before shipping. If you do not have tools to safely remove the springs yourself, ship them assembled. We will dismount and remount them for you. There is a $15.00 per shock charge to remove and reinstall springs that require the use of a spring compressor.
You may also visit our Shop at Sonoma Raceway to drop off your shocks and discuss your suspension requirements. We are open Monday through Friday, 8.00am to 5.00pm. Call in advance for Raceway access during race weekends.
Due to the (potentially dangerous) nature of motorsports, aside of Manufacturers offered warranties, there is no warranty, guarantee or liability expressed or implied applicable to any parts supplied or services performed by Performance Shock, Inc (PSi).