Skyjacker B8578 Black MAX Rear Shock for 1973-1991 Chevy/GMC 4WD

Regular price: $68.95
Regular price: ~~$71.49~~
Sale price: $68.95

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In Stock: 26

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Product Specification:

SKU:SKYB8578

MPN: B8578

UPC: 803696238906

Weight: 8.0 lb

Inventory: 26

Type: Shocks and Struts

Vehicle Fitment

1973-1987 Chevrolet/GMC ½-Ton & ¾-Ton Pickup 4WD (C10/K10, K20, etc.) - Rear Suspension (lifted 9-12" or 4.5-10")
1973-1991 Chevrolet Blazer 4WD - Rear Suspension (lifted 9-12")
1973-1991 GMC Jimmy 4WD - Rear Suspension (lifted 9-12")
Selected classic truck rear lift applications where shock length 34.0" extended / 20.27" collapsed is required

Features

Black MAX twin-tube hydraulic shock with foam-cell technology for consistent performance
Foam-cell insert helps compensate for oil expansion when hot to maintain damping control
Multi-stage valving balances on- and off-road ride quality
Chrome-plated piston rod for corrosion resistance and smooth operation
360° arc-welded end mounts boost strength and durability
180° directional mounting allows it to be installed in either orientation
Protective black boot included to help guard shaft and seal from debris and elements
Limited lifetime warranty for long-term confidence

Specifications

Brand: Skyjacker Suspensions
Part Number: B8578
Position: Rear shock absorber (sold individually)
Design: Black MAX twin-tube hydraulic shock with foam-cell
Extended Length: ~34.0 in
Collapsed Length: ~20.27 in
Stroke: ~13.73 in
Mount Style: Eyelet/loop upper & lower - 180° directional mount
Boot: Black protective boot included

Included Components

1x Skyjacker B8578 Black MAX rear shock absorber with protective boot

Product Description

The Skyjacker B8578 Black MAX Rear Shock Absorber is engineered for classic Chevy and GMC 4WD truck and SUV applications with lifted rear suspensions. Specifically designed to fit 1973-1987 Chevrolet and GMC ½-ton and ¾-ton pickups (such as C10/K10 and K20 series) and 1973-1991 Blazer and Jimmy models when equipped with rear lift heights in the *9-12"* range (or 4.5-10" on selected pickups), this shock delivers reliable performance over varied terrain. Its advanced foam-cell technology compensates for fluid expansion under heat, helping maintain consistent damping response even during extended off-road use.

Built with a durable twin-tube hydraulic design, multi-stage valving, and a chrome-plated piston rod, the B8578 provides balanced ride control on pavement and rough surfaces alike. The 360° arc-welded end mounts and 180° directional installation give added strength and flexibility for classic vehicle setups. Includes a protective black boot to shield the shock shaft from debris and the elements. Sold individually, these shocks are ideal for owners looking to upgrade or replace rear shock absorbers on lifted classic Chevy/GMC trucks and SUVs with the proper applications.