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Progressive-Rate Front Lift Spring for the Wrangler YJ
The Skyjacker YJ40FS Softride front leaf spring gives 1987-1995 Jeep Wrangler YJ owners a 3.5 to 4 inch front lift while keeping ride quality civil on and off the trail. Constructed as a progressive multileaf pack using American steel, the YJ40FS matches or exceeds OE load capacity while the tapered, shot-peened leafs and bolt style spring clips reduce friction and improve wheel travel over the factory design.
Key Features
- Constructed as progressive multileaf packs
- Load capacity equal to or greater than OE
- Made with American steel
- Bolt style spring clips reduce friction
- 3.5-4 inch lift height
- Limited lifetime warranty
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 1987-1988 | Jeep | Wrangler | Sport |
| 1987-1993 | Jeep | Wrangler | Base |
| 1988-1992 | Jeep | Wrangler | Islander |
| 1987-1990 | Jeep | Wrangler | Laredo |
| 1991-1994 | Jeep | Wrangler | Renegade |
| 1995 | Jeep | Wrangler | Rio Grande |
| 1988-1995 | Jeep | Wrangler | Sahara |
Specifications
| Detail | Value |
|---|---|
| Position | Front |
| Series | Softride Series |
| Lift Height | 3.5-4 Inch |
| Spring Width | 2.5 Inch |
| Number of Leafs | 4 |
| Spring Free Arch | 8 3/4 Inch +/- 1/4 |
| Spring Bushing Included | No |
| Drive | 4WD |
| Sold As | Each |
| UPC | 647099003679 |
What's Included
- One YJ40FS Softride front leaf spring
About Skyjacker
Skyjacker has engineered suspension lift kits, shocks, leaf springs, and off-road components in West Monroe, Louisiana since 1970. Every Skyjacker product is designed, tested, and built to deliver dependable performance for trucks, Jeeps, and SUVs on the street, the trail, or anywhere in between.
Related Parts
Frequently Asked Questions
What is the YJ40FS?
The YJ40FS is a Skyjacker Softride front leaf spring for the 1987-1995 Jeep Wrangler YJ, providing a 3.5 to 4 inch front lift.
Is the YJ40FS sold individually or as a pair?
The YJ40FS is sold as each, so order two for a complete front axle set.
Does the YJ40FS include spring bushings?
No, spring bushings are not included and must be purchased separately.
How many leafs does the YJ40FS have?
The YJ40FS is built as a 4-leaf progressive multileaf pack.
What lift height does the YJ40FS provide?
The YJ40FS provides a 3.5 to 4 inch front lift.
Which Wrangler YJ trims fit the YJ40FS?
The YJ40FS fits 1987-1995 Jeep Wrangler YJ models including Base, Sport, Sahara, Laredo, Renegade, Islander, and Rio Grande trims.
Does the YJ40FS load capacity match factory specs?
Yes, the YJ40FS load capacity is equal to or greater than OE specification.
Does the YJ40FS come with a warranty?
Yes, the YJ40FS is backed by Skyjacker's limited lifetime warranty.
Install Instructions
- Raise and safely support the front of the Wrangler YJ, then remove the wheel
- Support the front axle and remove the factory leaf spring assembly
- Install spring bushings into the YJ40FS eyelets (purchased separately)
- Position the YJ40FS onto the frame mounts and axle perch
- Install and torque U-bolts and shackle hardware to factory specification
- Lower the vehicle and repeat on the opposite side
Prop 65 Warning
WARNING: This product can expose you to chemicals including lead, which is 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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