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4 Inch Lift Kit Upgraded with Nitro Shocks
The Skyjacker F840TK-N is a 4 inch suspension lift kit built for 1980 to 1996 Ford F-250 and F-350 trucks with the twin I-beam front suspension, upgraded with Skyjacker Nitro shocks. The kit bundles the hinge brackets, rear blocks, and U bolt hardware needed for the twin I-beam lift with Nitro shocks that use a nitrogen charged design for smooth, controlled damping across a wide range of driving conditions. This kit is intended for trucks without a towing package.
Key Features
- 4 inch lift height using twin I-beam front hinge brackets
- Includes Skyjacker Nitro shocks with nitrogen charged damping
- 2 inch rear blocks and U bolt kits included
- Complete hardware bag with locknuts, washers, and bushings
- Limited lifetime warranty
Fitment
| Year Range | Make | Model |
|---|---|---|
| 1980-1996 | Ford | F-250 |
| 1980-1996 | Ford | F-350 |
Specifications
| Detail | Value |
|---|---|
| Manufacturer Part Number | F840TK-N |
| Brand | Skyjacker |
| Lift Height | 4 inch |
| Suspension Type | Twin I-beam |
| Shock Series | Nitro |
| Warranty | Limited lifetime |
| UPC | Not Published |
What's Included
- Left and right hinge brackets
- 2 inch rear blocks
- Front and rear U bolt kits
- Front and rear Nitro shocks
- Spring bushing hardware bag
About Skyjacker
Skyjacker Suspensions has built complete lift systems in the United States since 1970, engineering springs, shocks, and hardware to work together. The F840TK-N pairs the correct twin I-beam hardware with Nitro shocks for owners who want smooth, nitrogen charged damping at the 4 inch lift height.
Related Parts
- Skyjacker 4"SR 80-96 F250,350 I,NO TW
- Skyjacker Suspension Lift Kit Component 1980-1985 Ford F-350 4 Wheel Drive
FAQ
What is the F840TK-N?The F840TK-N is a Skyjacker 4 inch suspension lift kit for 1980 to 1996 Ford F-250 and F-350 twin I-beam trucks that includes hinge brackets, rear blocks, hardware, and Nitro shocks.
What are Nitro shocks?Nitro shocks are a Skyjacker shock series that use a nitrogen charged design to deliver smooth, consistent damping across varied driving conditions.
Does the F840TK-N fit trucks with a towing package?The F840TK-N is intended for trucks without a towing package; towing package equipped trucks require a different kit variant.
How does the F840TK-N differ from the standard F840TK?The F840TK-N includes Nitro shocks in place of the standard shocks bundled with the base F840TK kit.
Does the F840TK-N include a warranty?Yes, the F840TK-N is backed by Skyjacker's limited lifetime warranty against manufacturing defects.
Does the F840TK-N include leaf springs?The F840TK-N includes hardware and shocks; leaf springs are sold separately to complete the system.
Is professional installation recommended for the F840TK-N?Professional installation is recommended given the complexity of front suspension work and shock replacement.
Can the F840TK-N be paired with a taller lift kit later?The F840TK-N is engineered as a 4 inch system, so combining it with a taller kit is not recommended without confirming compatibility.
Install Instructions
- Raise and support the vehicle on jack stands rated for the vehicle weight
- Remove the factory front hinge brackets, shocks, and rear leaf spring hardware
- Install the Skyjacker hinge brackets included in the F840TK-N kit
- Install the 2 inch rear blocks and secure with the supplied U bolt kits
- Install the included Nitro shocks at the factory mounting points
- Torque all fasteners to manufacturer specifications
- Lower the vehicle and perform a front end alignment
Prop 65 Warning
This product can expose you to chemicals which are 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.
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