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Classic 4 Inch Lift for the Legendary FJ40
The Skyjacker L40KS-N brings a complete 4 inch suspension lift system to the iconic Toyota Land Cruiser FJ40, pairing front and rear leaf springs with Nitro shocks for a balanced combination of ground clearance and control. Built for 1964 to 1980 FJ40 owners who want to run larger tires or improve approach and departure angles for off-road use, this system includes the springs, shocks, bushing kits, and U-bolts needed for a complete installation. Skyjacker has supported the FJ40 platform for decades, and the L40KS-N reflects that long track record of engineering for this specific chassis.
Key Features
- 4 inch suspension lift system engineered specifically for the FJ40
- Includes front and rear leaf springs and Nitro shocks
- Polyurethane spring bushing kit included for smoother articulation
- U-bolt kits included for complete installation
Fitment Table
| Year Range | Make | Model |
|---|---|---|
| 1964-1980 | Toyota | Land Cruiser FJ40 |
Specifications
| Detail | Value |
|---|---|
| Manufacturer | Skyjacker |
| Part Number | L40KS-N |
| Lift Height | 4 inch |
| Shock Type | Nitro |
| Category | Suspension Lift Kit |
| Prop 65 Warning | Yes |
| UPC | Not Published |
What's Included
- Front leaf springs
- Rear leaf springs
- Front and rear Nitro shocks
- Polyurethane spring bushing kit
- U-bolt kits
About Skyjacker
Skyjacker has manufactured suspension systems for trucks, Jeeps, and SUVs since 1970. Every component is engineered and tested to hold up to real world off-road use while preserving on-road manners, and the brand backs its lift systems with a limited lifetime warranty on most products.
Related Parts
- Skyjacker Leaf Spring 1972-1977 International Scout II 4 Wheel Drive (SKYS40FS)
FAQ
What is the L40KS-N?The L40KS-N is a Skyjacker 4 inch suspension lift system built for the 1964 to 1980 Toyota Land Cruiser FJ40. It includes front and rear leaf springs, Nitro shocks, bushings, and U-bolts for a complete installation.
What is the difference between the L40KS and L40KS-N?The L40KS-N includes Nitro shocks, while other kit variants may use different shock types or omit shocks entirely.
What tire size can the L40KS-N support?A 4 inch lift generally allows for larger aftermarket tires, though the exact maximum size depends on wheel offset and fender trimming.
Does the L40KS-N require bushing grease during installation?Yes, applying grease to the polyurethane bushings before installation helps ensure smooth spring articulation.
Is the L40KS-N suitable for daily driving?Yes, Skyjacker engineers this system to maintain stable, predictable handling for daily use as well as off-road driving.
Is professional installation recommended for the L40KS-N?Professional installation is recommended, though experienced DIY installers with the proper tools can complete the job.
Is the L40KS-N backed by a warranty?Skyjacker covers the L40KS-N under its standard limited lifetime warranty against manufacturing defects.
Does the L40KS-N include rear shocks?Yes, the L40KS-N includes both front and rear Nitro shocks in the kit.
Install Instructions
- Raise and safely support the front of the vehicle on jack stands.
- Remove tires, shocks, and U-bolts, then loosen sway bar bolts to access the front springs.
- Install new front leaf springs with the tie bolt oriented as specified, then install new U-bolts and shocks.
- Repeat the process at the rear, installing new rear leaf springs, U-bolts, and shocks.
- Lower the vehicle, tighten all spring eye bolts, and check ride height and alignment.
Prop 65 Warning
This product can expose you to chemicals known to the State of California to cause cancer or reproductive harm. For more information go to www.P65Warnings.ca.gov.
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