Direct-fit OE upgrade rear shock for 1999–2007 Silverado 1500 and Sierra 1500 with coil spring suspension. 46mm monotube nitrogen gas design at stock height. Not for Quadrasteer-equipped models. Made in the USA.
The Bilstein 24-029032 B6 4600 Series Rear Shock Absorber is a direct bolt-on upgrade over the factory rear shocks on the 1999–2007 Chevrolet Silverado 1500 and GMC Sierra 1500 with coil spring suspension. Whether you're hauling work gear, towing a trailer on the weekend, or just looking for sharper handling on your daily driver, the 4600 series delivers a significant and immediately noticeable improvement in ride quality, control, and traction — with no spring changes needed.
Bilstein's 46mm monotube design keeps damping fluid and high-pressure nitrogen gas separated by a floating piston, eliminating the fade and foaming that degrade standard twin-tube shocks over time and under load. Application-specific valving means this shock is tuned precisely for the Silverado/Sierra 1500 platform — not a generic "heavy duty" compromise — delivering the right balance of compliance and control for real-world truck use.
Bolt-on fit using stock mounting hardware — eyelet upper and lower, no modifications needed
Fade-free performance under sustained loads with cooler, more consistent damping than twin-tube alternatives
Velocity-sensitive deflective disc valving responds instantly to changing road conditions for smooth, confident control
Designed, engineered, and built in the USA. Backed by Bilstein's limited lifetime warranty for the original purchaser
This shock absorber is not compatible with Silverado 1500 or Sierra 1500 models equipped with the Quadrasteer four-wheel steering system, which was an optional feature on certain 2002–2005 models. Verify your truck does not have Quadrasteer before ordering. If your vehicle has Quadrasteer, a different part number is required.
Suspension Type: Fits models with coil spring rear suspension. Does not fit leaf spring rear suspension configurations. Hardware: Mounting hardware is not included — this shock uses your vehicle's existing OEM mounting hardware. Sold Individually: One shock absorber per package. Order qty 2 for a complete rear pair. Stock Height Only: The B6 4600 Series is designed for stock-height applications. For lifted Silverado/Sierra 1500 trucks, see the Bilstein B8 5100 series. Verify Cab & Configuration: Always confirm your specific year, cab style (Standard, Extended, Crew), and suspension type before ordering.
In The Box (Qty: 1 Shock Absorber): • Bilstein 24-029032 Rear Shock Absorber • Blue Protective Boot • Black Rubber Bushings NOT Included: • Mounting Hardware (use existing OEM hardware) • Dust Shield • Second shock (sold individually — order qty 2 for a complete rear pair)
24-029025 — Front B6 4600 shock for 1998–2007 Sierra / 1999–2007 Silverado 1500 w/ coil spring suspension 24-186742 — Rear B8 5100 shock for 1999–2006 Silverado/Sierra 1500 4WD w/ 0–1" lift Pair front and rear shocks for balanced handling. Always confirm fitment for your specific cab, suspension, and drivetrain configuration before ordering.
Bilstein Official Product Page Bilstein Technical Support: Website: www.bilstein.com Warranty: Limited Lifetime for original purchaser — B6 4600 series gas pressure shocks. Proof of purchase required. See full terms at Bilstein's website.
The 24-029032 fits the following vehicles at stock ride height with coil spring rear suspension and without Quadrasteer. Sold individually. Always verify your specific cab configuration and suspension type before ordering.
⚠️ Fitment cross-referenced across multiple authorized Bilstein dealers. This shock requires coil spring rear suspension and is not compatible with Quadrasteer-equipped models. Cab style, trim, and factory options can affect fitment — always verify your exact configuration before ordering.