Skyjacker B8577 Black MAX Rear Shock for 2000-2005 Ford Excursion 4WD 5.5-8in

Vehicle Fitment

• 2000-2005 Ford Excursion (4WD / 2WD, Gas - V8 & V10) - Rear, 5.5-8 in. Lift
• 2000-2005 Ford Excursion (4WD / 2WD, Diesel - Power Stroke 7.3L) - Rear, 5.5-8 in. Lift

Fitment Notes

• Fits rear position only; designed for 5.5-8 in. of rear suspension lift on the Ford Excursion platform
• Fits the Ford Excursion's leaf-spring solid front axle configuration (Dana 50 / Dana 60) only - does NOT fit Excursion models equipped with Independent Front Suspension (IFS)
• Upper mount is a Bar Pin (BP8) style; lower mount is an Eyelet/Sleeve (ES25) - verify compatibility with your specific lift kit hardware before ordering
• This is the rear companion to the Skyjacker B8560 (front) at 7-8 in. of lift; the B8560 and B8577 together form a complete front-and-rear shock set for the Excursion at this extreme lift range
• For lower rear lift heights on the Excursion, see Skyjacker B8560 (rear, 4.5-8 in. standard range); B8577 is specifically dimensioned for the 5.5-8 in. rear lift application
• Sold individually - purchase two (2) for a complete rear axle replacement
• Reuses factory shock mounting hardware; no additional brackets required

Features

• Advanced foam-cell technology uses a Low-Pro foam insert that compresses during oil expansion, maintaining consistent damping performance across the full operating temperature range
• Foam-cell design eliminates air inside the shock body, allowing mounting in any direction without performance loss or cavitation
• Vehicle-specific multi-stage StableSteer valving calibrated to the Ford Excursion rear leaf spring suspension at 5.5-8 in. lift heights - maximizes tire-to-road contact for improved stability, handling, and traction on- and off-road
• Increased fluid capacity for maximum heat dissipation during sustained off-road, towing, or hauling use at aggressive lift heights
• 360° arc-welded end mounts deliver superior structural strength and long-term durability
• 180° directional mounting allows flexible installation orientation
• Chrome-plated hardened shock shaft resists pitting and corrosion, extending seal life and overall shock service life
• Sintered iron piston and heavy-duty compression head minimize internal wear for an extended service life
• Twin-tube construction with DOM (Drawn Over Mandrel) tubing maintains tight tolerances for consistent damping output
• Durable corrosion-resistant black coating over heavy-duty steel shock body
• Black polyurethane bushings at both mounts provide rattle-free, precise fitment
• Backed by Skyjacker's Limited Lifetime Warranty against defects in materials and workmanship

Specifications

• Part Number: B8577
• Position: Rear (Driver Side or Passenger Side)
• Extended Length: 34.00 in. (863.60 mm)
• Collapsed Length: 20.27 in. (514.86 mm)
• Stroke: 13.73 in. (348.74 mm)
• Internal Design: Twin-Tube
• Gas Charged: No (Hydraulic / Foam-Cell)
• Adjustable Valving: No
• Upper Mount Type: Bar Pin (BP8)
• Lower Mount Type: Eyelet / Sleeve (ES25)
• Bushing Material: Polyurethane
• Bushing Color: Black
• Shaft Finish: Chrome-Plated
• Body Finish: Black Powder Coat
• Lift Height Compatibility: 5.5-8 in. Rear Lift
• Quantity: Sold Individually (1 per pack)

Included Components

• 1x Skyjacker B8577 Black MAX Rear Shock Absorber
• 1x Black Protective Dust Boot

Product Description

The Skyjacker B8577 Black MAX Twin-Tube Shock Absorber is a purpose-built extreme-lift rear shock for the 2000-2005 Ford Excursion - the only vehicle fitment for this part number. At 34.00 inches extended and a 13.73-inch stroke, it is one of the longest-travel shocks in the Black MAX lineup, engineered specifically for the Excursion's rear leaf spring suspension at 5.5 to 8 inches of lift. The Ford Excursion's substantial wheelbase, gross vehicle weight, and body-on-frame construction with a solid rear axle demand a shock with genuine long-travel capacity at these heights, and the B8577 delivers that - maintaining correct shock geometry, proper droop, and controlled compression at lift heights where standard-length shocks would overextend and fail prematurely.

An important fitment note: the B8577 is designed for Excursion configurations with a leaf-spring solid front axle (Dana 50 or Dana 60). It is not for use on IFS-equipped variants. The shock supports both Gas (V8, V10) and Diesel (7.3L Power Stroke) engine configurations across 4WD and 2WD/RWD drivetrains. Built on Skyjacker's Advanced Foam-Cell technology, the B8577 uses a Low-Pro foam insert that compensates for oil expansion under the heat and stress of towing, hauling, and sustained off-road use - maintaining consistent damping output throughout the operating temperature range. Vehicle-specific multi-stage StableSteer valving is calibrated to the Excursion's rear suspension demands at these extreme lift heights, keeping the rear axle stable and the load controlled whether on the highway or the trail.

The Bar Pin (BP8) upper mount and Eyelet/Sleeve (ES25) lower mount provide a direct bolt-on installation using the Excursion's factory rear shock hardware. For a complete lifted Excursion shock package, the B8577 pairs with the Skyjacker B8560 in the front position - together covering the 7-8 in. lift range on this platform. The shock is sold individually - two are required for a complete rear axle upgrade. Backed by Skyjacker's Limited Lifetime Warranty for the original retail purchaser.