The Bilstein B6 Performance 24-131506 is a yellow, monotube front shock absorber sized for the 1968 Chevrolet Chevelle 300 Coupe. Bilstein B6 Performance dampers are a performance upgrade to OE dampers designed to be paired with the OE factory spring. That makes it a direct upgrade path for a tired front end on a numbers-matching or restored A-body, without touching ride height or spring rate. These dampers offer application specific valve settings with a monotube design, so the damping is tuned for the car rather than generic.
Against a budget twin-tube replacement, the reason to spend more is the valving and the monotube body, which are built to keep damping consistent when shocks heat up on a long run or a hard back road. Owner reports on user forums suggest the ride feel varies by car and setup, so set expectations for a firmer or softer front end before you order. Search terms buyers use for this part include "1968 Chevelle 300 coupe front monotube shock," "B6 performance front shock upgrade," "GM A-body front shock 24-131506," and "Bilstein B6 Chevelle without new springs." Check the fitment year and body style against the manufacturer's application guide before ordering, since sources list different year ranges. Because no dust boot or spring seat ships with the unit, inspect your factory boots and seats before you install.
The manufacturer designs the B6 Performance to pair with the factory spring, so no spring change is required for this part.
According to the manufacturer's product data, neither a boot nor a spring seat is included with this shock.
The manufacturer lists a quantity of 2 per vehicle, and the part is sold individually, so order two front units for a pair.
The manufacturer lists a Limited Lifetime Warranty on the B6 Performance 24-131506.