Direct-fit OE upgrade rear shock for classic Chevrolet and GMC C/P/R-Series trucks, vans, and cutaways, plus the Workhorse P30 and P32 Class A motorhome chassis. Eyelet upper and lower mounts. 46mm monotube design. Made in the USA.
The Bilstein 24-015875 B6 4600 Series Rear Shock Absorber is a direct-fit upgrade for one of the broadest and most long-running fitment applications in the Bilstein 4600 catalog. It covers a wide range of classic Chevrolet and GMC heavy-duty C-Series trucks, P-Series forward-control vans and cutaways, and R-Series pickups — and extends forward to the Workhorse P30 and P32 Class A motorhome chassis (2000–2005), which were built on a GM-derived platform.
Whether you're maintaining a classic work truck, a step van, a shuttle bus chassis, or a Workhorse Class A motorhome, this shock restores and improves rear axle stability, reduces excessive bounce and sway, and delivers the precise, controlled rear suspension feel that high-mileage heavy-duty trucks and chassis demand.
Covers classic GM C/P/R-Series trucks and vans from 1973–1999, plus the Workhorse P30/P32 motorhome chassis 2000–2005
Fade-free rear damping under heavy commercial and motorhome loads — consistent performance for trucks that work hard
Application-tuned for both classic GM heavy-duty trucks and the Workhorse motorhome chassis platform
Designed, engineered, and manufactured in the USA. Backed by Bilstein's limited lifetime warranty
Wide Fitment — Verify Before Ordering: This shock covers a very large number of Chevrolet and GMC model designations across a 30+ year span. Always verify your specific vehicle year, model designation, and configuration against the fitment table before ordering. Sold Individually: One shock absorber per package. Order qty 2 for a complete rear axle replacement. Stock Height Only: The B6 4600 Series is for stock-height applications only.
In The Box (Qty: 1 Shock Absorber): • Bilstein 24-015875 Rear Shock Absorber • Blue Protective Boot • Black Rubber Bushings NOT Included: • Mounting Hardware • Second shock (sold individually — order qty 2 for a complete rear pair)
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 24-015875 fits the following vehicles at stock ride height. This shock covers a wide range of Chevrolet and GMC C/P/R-Series commercial trucks and vans, and the Workhorse P30/P32 Class A motorhome chassis. Sold individually — order two for a complete rear replacement.
⚠️ Fitment cross-referenced across GI Service Center, Amazon, and SuperSteer Parts. This shock covers a wide range of classic GM commercial platforms and Workhorse motorhome chassis. Always verify your specific year, model designation, and configuration before ordering.