Skyjacker · New
Skyjacker COM BOX4.5In 21 F1504WDBMAX
MPN F2145BB · Store SKU skyF2145BB
Supplier stock checked 11/7/2026, 9:17:37 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
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Product details
Precise engineered 1-piece strut spacers have a specific ‘Pitch and Index' offset to preserve CV extension and to prevent CV axle overextension within the OEM tolerances. A differential skid plate tie the two crossmembers together to create a rigid sub-frame and added protection for vital steering and driveline components. This all-inclusive kit has front and rear brake line relocation brackets, differential vent tube extension, a CNC machined 6061-T6 aluminum front driveshaft spacer, rear driveshaft carrier bearing, cast ductile iron rear blocks with longer Grade 8 U-bolts and lock nuts. Complete with all high-quality grade mounting hardware. Every metal fabricated bracket is precise CNC laser cut and precision formed in CNC press break, there is expert workmanship in every component of the kit. Powder coated or Zinc plated to provide an extremely durable protective barrier to prevent corrosion. Black MAX Shocks feature advanced Foam-Cell technology, twin-tube construction with DOM tubing internal cylinder. Increased fluid capacity at least 30% more for MAXimum heat dissipation. Advanced foam-cell technology, a Low-Pro foam insert increases fluid density when fluid is being compressed (compression shock) and eliminates air as fluid expands (expansion shock). Orifice control disk opens and closes depending on rate of speed of the piston moving through the oil. Each end mount is arc-welded 360 degrees all around for strength. Black MAX offers 180 degree directional mounting (mount shaft up or shaft down). These Black MAX Shocks have specific valving and stroke for this application. Internal Stable Steer valving, a heavy-duty compression head, a sintered iron (harder, stronger) piston with a super-finish chrome plated shaft work together to ensure solid and consistent contact between your tires and the terrain. Black MAX increases performance and style to deliver a smooth, comfortable ride. 4.5 in. Component Box With Black Max Shocks. COM BOX:4.5in.21>F1504WD;BMAX
Manufacturer fitment & guides
Check F2145BB against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
