Restore Ride Control To Classic Chevrolet And GMC 4x4s
The Skyjacker B8543 Black Max shock absorber is a twin-tube, foam-cell hydraulic shock engineered to deliver smooth, controlled damping for classic Chevrolet and GMC K-Series and Suburban trucks. It uses a nitrogen-charged foam cell design that reduces fluid aeration and fade during extended highway driving, towing, or light off-road use. A chrome-plated shaft and arc-welded mounts resist corrosion and hold up to repeated compression cycles, while a sintered iron piston and 180-degree multi-stage valving deliver soft-ride comfort without letting the vehicle feel disconnected from the road. The B8543 is a direct bolt-on replacement, matching factory shock length and mounting hardware so installation does not require any drilling, cutting, or additional parts.
Key Features
- Twin-tube foam-cell hydraulic design reduces fluid aeration for consistent damping
- Chrome-plated shaft resists pitting and corrosion over the life of the shock
- Arc-welded mounts add strength at the highest-stress connection points
- Sintered iron piston with 180-degree multi-stage valving for soft-ride comfort tuning
- Direct bolt-on replacement using factory mounting locations and hardware
- Backed by a Skyjacker Limited Lifetime Warranty against defects in materials and workmanship
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 1973-1991 | Chevrolet | Blazer/K5 Blazer | All Available Trims |
| 1973-1986 | Chevrolet | C10/C20/C30 Series | All Available Trims |
| 1973-1986 | Chevrolet | K10/K20 Series | All Available Trims |
| 1987-1991 | Chevrolet | R/V Series Suburban | All Available Trims |
| 1973-1991 | GMC | Jimmy | All Available Trims |
| 1973-1986 | GMC | C/K15-K25 Series | All Available Trims |
| 1987-1991 | GMC | R/V1500-V2500 Suburban | All Available Trims |
Specifications
| Detail | Value |
|---|---|
| Brand | Skyjacker |
| Product Line | Black Max |
| MPN | B8543 |
| UPC | 803696238647 |
| Weight | 6.55 lbs |
| Design | Twin-Tube Foam-Cell Hydraulic |
| Shaft Finish | Chrome-Plated |
| Piston Type | Sintered Iron, 180-Degree Multi-Stage Valving |
| Mount Type | Arc-Welded, Factory-Style Bolt-On |
| Warranty | Skyjacker Limited Lifetime Warranty |
What's Included
- 1 x Skyjacker Black Max Shock Absorber
- Mounting hardware included where applicable per factory attachment style
About Skyjacker
Skyjacker has manufactured suspension components in West Monroe, Louisiana since 1970. The company builds and tests its lift kits, shocks, and suspension components in-house, and every Black Max shock is backed by a Skyjacker Limited Lifetime Warranty. Skyjacker suspension products are used across street, off-road, and towing applications by builders who need parts engineered to hold up over time.
Related Parts
FAQ
What is the B8543?The B8543 is a Skyjacker Black Max twin-tube foam-cell hydraulic shock absorber built as a direct bolt-on replacement for classic Chevrolet and GMC K-Series and Suburban trucks.
Is the B8543 a direct replacement for the factory shock?Yes. The B8543 is designed to bolt directly into the factory mounting locations without drilling, cutting, or additional parts.
What warranty does the B8543 carry?The B8543 is covered by a Skyjacker Limited Lifetime Warranty against defects in materials and workmanship.
Does the B8543 work with a lifted or leveled suspension?The B8543 is designed for stock ride height applications. For lifted or leveled setups, check Skyjacker's lift-specific shock length before ordering.
What type of damping does the B8543 use?The B8543 uses a twin-tube foam-cell hydraulic design with sintered iron piston and 180-degree multi-stage valving for soft-ride comfort tuning.
Will the B8543 improve ride comfort over a worn factory shock?Yes. A worn factory shock loses damping control over time, and the B8543 restores consistent, controlled compression and rebound.
Can the B8543 be used for towing?Yes. The foam-cell design resists fluid aeration and fade, which helps maintain damping control under towing loads.
Does the B8543 require any special tools to install?No special tools are required beyond standard hand tools and a torque wrench for factory-spec fastener tightening.
Install Instructions
- Raise and support the vehicle on jack stands, then remove the wheel if needed for clearance
- Support the axle or control arm so it does not drop suddenly once the shock is disconnected
- Remove the upper and lower mounting hardware securing the factory shock
- Remove the factory shock absorber from the vehicle
- Position the new Skyjacker Black Max shock absorber into the upper and lower mounts
- Install and hand-tighten the upper and lower mounting hardware
- Torque all mounting hardware to the manufacturer's specification
- Reinstall the wheel if removed, lower the vehicle, and repeat on the opposite side
Prop 65 Warning
This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Shocks and Struts
Shocks and struts for cars, trucks, SUVs, and Jeeps are stocked at Black Ops Auto Works. Shop front and rear shocks, loaded strut assemblies, monotube shocks, twin-tube shocks, reservoir shocks, and steering dampers for daily drivers, lifted trucks, tow rigs, off-road builds, and muscle cars on Hellcat, Trackhawk, TRX, HEMI, LS, LT, Coyote, and EcoBoost platforms. Every shock and strut is filterable by year, make, model, trim, drivetrain, front or rear position, and ride height so the correct part ships the first time. Black Ops Auto Works carries 5,188 shock and strut SKUs across construction type, application, and vehicle use. What This Category Covers Shocks and struts damp spring oscillation so the tire stays planted on the road and are the most common suspension replacement job on any vehicle. A shock absorber is a standalone damping unit that bolts between the chassis and axle or lower control arm. A strut is a structural suspension member that combines damping with the sp...
View Shocks and Struts Products
Skyjacker
Skyjacker suspension parts are stocked at Black Ops Auto Works for Jeep, Ford, Chevrolet, GMC, RAM, and Toyota trucks and 4x4 vehicles. Shop lift kits, leveling kits, dual rate coil springs, Black Max, Nitro 8000, Hydro 7000, and ADX M2.0 shocks, steering stabilizers, upper control arms, and suspension hardware. Every product is filterable by year, make, model, trim, and drivetrain so the correct Skyjacker part ships the first time. Black Ops Auto Works carries 1,596 Skyjacker SKUs across lift, leveling, and off-road suspension categories. What This Collection Covers Skyjacker builds off-road suspension systems for trucks and Jeeps that need more ground clearance, better ride control, improved steering stability, and stronger trail capability. Skyjacker is best known for lift kits, leveling kits, and long travel coil springs. Product Categories Lift kits and component boxes, leveling kits and strut spacers, dual rate and long travel coil springs, Black Max, Nitro 8000, Hydro 700...
View Skyjacker Products
Suspension
Suspension parts and complete kits for cars, trucks, SUVs, Jeeps, and off-road builds are stocked at Black Ops Auto Works. Shop coilovers, lowering springs, lift kits, leveling kits, shocks and struts, sway bars, control arms, tie rods, ball joints, bushings, chassis bracing, alignment hardware, air suspension, and complete stage kits from Bilstein, KW, Ohlins, Fox, KING, ICON, BC Racing, Silvers, Eibach, H&R, Swift Springs, Whiteline, Energy Suspension, Moog, SPC Performance, Rough Country, ReadyLIFT, BDS, Skyjacker, Air Lift, Firestone, and Black Ops Auto Works. Start with a matched shock and spring package or a full coilover kit, then layer in sway bars, chassis bracing, and camber adjustment hardware. Every part is filterable by year, make, model, trim, and drivetrain to confirm fitment before ordering. What This Category Covers Suspension is the highest-leverage handling upgrade on any vehicle. A properly matched shock, spring, and sway bar package produces measurable i...
View Suspension Products


