Description

Softride(R) springs use only American steel and the individual leafs of each spring are shot-peened with hard steel pellets at very high velocities. This shot-peening compresses the surface of the steel thereby increasing the tensile strength of the spring. Without this shot-peening procedure, the maximum wheel travel and ride quality could not be achieved without sacrificing the life of the spring. Softride(R) springs use bolt style spring clips, eliminating friction. Other spring designs use the c in. style bend clips which bend tightly over the spring leafs causing binding and friction. Skyjacker(R) Softride(R) springs taper over the entire length of the leaf creating more flex at the leaf ends. This tapering distributes loads more evenly over a greater area and reduces the tendency for one leaf to dig into the leaf above it.

Product Overview

Softride(R) springs use only American steel and the individual leafs of each spring are shot-peened with hard steel pellets at very high velocities. This shot-peening compresses the surface of the steel thereby increasing the tensile strength of the spring. Without this shot-peening procedure, the maximum wheel travel and ride quality could not be achieved without sacrificing the life of the spring. Softride(R) springs use bolt style spring clips, eliminating friction. Other spring designs use the c in. style bend clips which bend tightly over the spring leafs causing binding and friction. Skyjacker(R) Softride(R) springs taper over the entire length of the leaf creating more flex at the leaf ends. This tapering distributes loads more evenly over a greater area and reduces the tendency for one leaf to dig into the leaf above it.

Features and Benefits

• Other Parts Required For A Complete Set
• Load Capacity Will Be Equal or Greater Than OE
• Made With American Steel
• Constructed As Progressive Multileaf Packs
• Limited Lifetime Warranty

Product Details

Description:	COMP BOX; 4IN. 87-95 JEEP YJ
Lift/Drop Height:	4 in.
Part Number:	skyYJ40
WARNING CA Proposition 65 Message:	California Residents- WARNING: Cancer and-or other Reproductive Harm. (For more information go to www.p65warnings.ca.gov)
WARNING CA Proposition 65:	Yes

Kit Options

This item is available as a full kit.
Select a kit option in the following table if you are looking for this item in a bundle form with all associated components.

Kit option/s:

Thumb	SKU	Kit Title
	skyYJ40K	Skyjacker 3.5-4" SOFT 86.5-96 WRAN YJ (2x skyYJ40RS, 2x skyYJ40FS, 1x skyYJ40)
	skyYJ40K-B	Skyjacker 4"KIT,87-96JEEP YJ W/BLK MA (2x skyYJ40RS, 2x skyYJ40FS, 1x skyYJ40, 2x skyB8559, 2x skyB8588)
	skyYJ40K-H	Skyjacker 4"KIT,87-96JEEP YJ W/HYDROS (2x skyYJ40RS, 2x skyYJ40FS, 1x skyYJ40, 2x skyH7059, 2x skyH7088)
	skyYJ40K-M	Skyjacker 4"KIT,87-96JEEP YJ W/ M95 (2x skyYJ40RS, 2x skyYJ40FS, 1x skyYJ40, 2x skyM9559, 2x skyM9558)
	skyYJ40K-N	Skyjacker 4"KIT,87-96JEEP YJ W/NITROS (2x skyYJ40RS, 2x skyYJ40FS, 1x skyYJ40, 2x skyN8059, 2x skyN8088)
	skyYJ40K-XM	Skyjacker 1987-1995 Jeep Wrangler Yj 4 In. Susp. Lift Kit With ADX M2.0 Aluminum Monotube Shocks (2x skyYJ40RS, 2x skyYJ40FS, 1x skyYJ40, 2x skyM2058, 2x skyM2059)

Data: v4.2 - Upd: 2026-09-26 22:03:53

Features

Specifications

Product Attributes - Brand

Skyjacker Suspensions

Product Attributes - Manufacturer's Part Number

YJ40

Product Attributes - Part Type

Suspension Lift Kit Components

Product Attributes - Product Line

Skyjacker Suspension Lift Kit Components

Product Attributes - UPC

803696167527

Product Attributes - Front Shocks/Struts Included

No

Product Attributes - Rear Shocks/Struts Included

No

Product Attributes - Brake Lines Included

No

Product Attributes - Hardware Included

No

Product Attributes - Designed for Kit Part Number

YJ40K

Product Attributes - Quantity

Sold as a kit.

Compatibility