Skyjacker COM BOX4.5In 21 F1504WDBMAX - F2145BB
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- UPC:
- 803696273266
Fitment not listed for this part yet — call or text 813-535-5801 and we will confirm it for your car.
- Part number
- SKYF2145BB
- Manufacturer part number
- F2145BB
- UPC
- 803696273266
- Brand
- Skyjacker
- Part type
- Lift Kits
- Prop 65
- ⚠️ WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov
- Special order
- Yes — ordered in for you; allow extra time
- Instructions
- Installation instructions (PDF)
- In the box
- All Mounting Hardware For Complete Lift Kit
Installation guide (from Skyjacker)
Hosted by Skyjacker. Follow the maker's instructions and torque specs.
- Box size:
- 21.30 × 7.00 × 24.60 (in)
Complete the job
Read before you buy
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
- 1-Piece Strut Spacers Have A Specific Pitch And Index Offset
- Rear Block And U-bolt Kit Raises Rear To A More Level Stance
- Aluminum Driveshaft Spacer Corrects Front Driveshaft Angle
- Black MAX Custom Valve Tuned Specific For This Application
- Black MAX 30 Percent More Fluid - Maximum Heat Dissipation
- Skid Plate Protects Vital Steering \ Driveline Components
- Black MAX Shocks Have 360 Degrees Arc-welded End Mounts
- Black MAX Engineered With Advanced Foam-cell Technology
- Front And Rear Brake Line Relocation Extension Brackets
- Black Max Shocks Have 180 Degrees Directional Mounting
- Includes All Mounting Hardware For Complete Lift Kit
- Carrier Bearing Drop Corrects Rear Driveshaft Angle
- Clearance Item:
- N
- LTL:
- N
- MPN:
- F2145BB
- Proposition 65:
- Y
- Special Order:
- Y
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Skyjacker
Skyjacker COM BOX4.5In 21 F1504WDBMAX - F2145BB
Skyjacker COM BOX4.5In 21 F1504WDBMAX - F2145BB FAQ
- All Mounting Hardware For Complete Lift Kit
The maker's installation guide is on this page — see Installation guide under the part details for the step-by-step and the torque figures. Work on level ground with the car properly supported, and torque every fastener to the maker's figure. If the job is beyond your tools, any shop that does this kind of work can fit it.
Yes. Any change in ride height changes the alignment; set it once the kit is on and the truck has been driven a short distance.
The maker states the largest tire the kit is designed to clear; going larger can need trimming or more lift. Wider wheels with less backspacing also change what clears.
Taller lifts change the angles of the driveshaft and CV joints, and kits made for that height include the parts to correct them when needed. A leveling kit that raises the front a small amount usually does not.
A leveling kit raises the front to match the rear and keeps the stock springs and shocks, so the ride stays close to stock. Larger lifts with new springs change the ride more.
Some kits reuse the stock shocks and some include or call for longer ones; the Part details and the maker's guide on this page say which.
Trucks with headlight leveling, adaptive cruise or a forward camera may need those systems re-aimed after the height changes.
Yes — monthly options show right under the Add to Cart button. Affirm, Klarna, PayPal Pay Later and Snap Finance are offered at checkout, and checking what you qualify for does not affect your credit score.
Install and care: lift kits
Before you start
- Read the maker's guide for the tire size it clears and whether longer shocks or driveline parts are called for.
- Book an alignment and, on trucks with cameras or adaptive cruise, a re-aim of those systems.
Do
- Torque every bolt to the maker's figure and re-check after the first drive.
- Align the truck once the height has settled.
Don't
- Don't run a larger tire than the kit is made for without checking the clearance.
- Don't skip the driveline parts the maker says a taller lift needs.
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