Description
Skyjacker Leaf Spring 1987-1987 GMC V1500 Pickup
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.
| Additional Application Notes | |
|---|---|
| • Lift Height 4 in.; Single | |
These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.
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 |
|---|---|---|
 |
skyC140AK | Skyjacker 4" SOFTR 73-87 GM 1/2 TON (2x skyC140S, 1x skyC140A) |
|
skyC140AK8 | Skyjacker 4"SR KIT,88-91 BLA,1/2T SUB (2x skyC140S, 1x skyC140A8) |
|
skyC140AKS | Skyjacker 4"SR 73-87 GM 1/2 W/REAR SP (2x skyCR14S, 2x skyC140S, 1x skyC124AS) |
|
skyC140AKS8 | Skyjacker 4"SR SYS 88-91 BLAZER/JIMMY (2x skyCR14S, 2x skyC140S, 1x skyC124AS8) |
|
skyC140AKSD | Skyjacker 4"73-87GM 1/2 TON W/56" SPR (2x skyCR24S, 2x skyC140S, 1x skyC124AS) |
|
skyC140AKSD8 | Skyjacker 4" SYS 88-91 1/2 T SUBURBAN (2x skyCR24S, 2x skyC140S, 1x skyC124AS8) |
|
skyC140AKSS | Skyjacker 4" SYS 73-87 1/2T SUB W/52" (2x skyC140S, 2x skyCR16S, 1x skyC124AS) |
|
skyC140AKSS8 | Skyjacker 4"SYS 88091 1/2T SUB/52"SPR (2x skyC140S, 2x skyCR16S, 1x skyC124AS8) |
|
skyC140BK | Skyjacker 4" SOFTR 73-87 GM 3/4 TON (2x skyC140S, 1x skyC140B) |
|
skyC140BK8 | Skyjacker 4" SOFTR KT,88-91 3/4 T SUB (2x skyC140S, 1x skyC140B8) |
|
skyC140BKS | Skyjacker 4"SR 73-87 GM 3/4 W/REAR SP (2x skyCR14S, 2x skyC140S, 1x skyC124BS) |
|
skyC140BKSD | Skyjacker 4"73-87GM 3/4T SYS W/56"SPG (2x skyCR24S, 2x skyC140S, 1x skyC124BS) |
 |
skyC140BKSD8 | Skyjacker 4"SR SYS 88-91 3/4T SUBURBN (2x skyCR24S, 2x skyC140S, 1x skyC124BS8) |
|
skyC140CK | Skyjacker 4" SOFTR 77-87 GM 1 TON (2x skyC140S, 1x skyC140C) |
 |
skyC140CKS | Skyjacker 4" 77-87 GM 1 TON SYSTEM (2x skyCR24S, 2x skyC140S, 1x skyC124CS) |
 |
skyC140AK-B | Skyjacker 4" SOFTR 73-87 GM 1/2 TON (2x skyC140S, 1x skyC140A, 2x skyB8553, 2x skyB8551) |
 |
skyC140AK-H | Skyjacker 4" SOFTR 73-87 GM 1/2 TON (2x skyC140S, 1x skyC140A, 2x skyH7053, 2x skyH7051) |
 |
skyC140AK-M | Skyjacker 4" SOFTR 73-87 GM 1/2 TON (2x skyC140S, 1x skyC140A, 2x skyM9553, 2x skyM9551) |
 |
skyC140AK-N | Skyjacker 4" SOFTR 73-87 GM 1/2 TON (2x skyC140S, 1x skyC140A, 2x skyN8051, 2x skyN8053) |
|
skyC140AK8-N | Skyjacker 4"SR KIT,88-91 BLA,1/2T SUB (2x skyC140S, 1x skyC140A8, 2x skyN8051, 2x skyN8053) |
|
skyC140AKS-B | Skyjacker 4"SR 73-87 GM 1/2 W/REAR SP (2x skyCR14S, 2x skyC140S, 1x skyC124AS, 2x skyB8553, 2x skyB8551) |
|
skyC140AKS-H | Skyjacker 4"SR 73-87 GM 1/2 W/REAR SP (2x skyCR14S, 2x skyC140S, 1x skyC124AS, 2x skyH7053, 2x skyH7051) |
|
skyC140AKS-M | Skyjacker 4"SR 73-87 GM 1/2 W/REAR SP (2x skyCR14S, 2x skyC140S, 1x skyC124AS, 2x skyM9553, 2x skyM9551) |
|
skyC140AKS-N | Skyjacker 4"SR 73-87 GM 1/2 W/REAR SP (2x skyCR14S, 2x skyC140S, 1x skyC124AS, 2x skyN8051, 2x skyN8053) |
|
skyC140AKS8-B | Skyjacker 4"SR SYS 88-91 BLAZER/JIMMY (2x skyCR14S, 2x skyC140S, 1x skyC124AS8, 2x skyB8553, 2x skyB8551) |
|
skyC140AKS8-H | Skyjacker 4"SR SYS 88-91 BLAZER/JIMMY (2x skyCR14S, 2x skyC140S, 1x skyC124AS8, 2x skyH7053, 2x skyH7051) |
|
skyC140AKS8-M | Skyjacker 4"SR SYS 88-91 BLAZER/JIMMY (2x skyCR14S, 2x skyC140S, 1x skyC124AS8, 2x skyM9553, 2x skyM9551) |
|
skyC140AKS8-N | Skyjacker 4"SR SYS 88-91 BALZER/JIMMY (2x skyCR14S, 2x skyC140S, 1x skyC124AS8, 2x skyN8051, 2x skyN8053) |
|
skyC140AKSD-B | Skyjacker 4"73-87GM 1/2 TON W/56" SPR (2x skyCR24S, 2x skyC140S, 1x skyC124AS, 2x skyB8553, 2x skyB8551) |
|
skyC140AKSD-H | Skyjacker 4"73-87GM 1/2 TON W/56" SPR (2x skyCR24S, 2x skyC140S, 1x skyC124AS, 2x skyH7053, 2x skyH7051) |
|
skyC140AKSD-M | Skyjacker 4"73-87GM 1/2 TON W/56" SPR (2x skyCR24S, 2x skyC140S, 1x skyC124AS, 2x skyM9553, 2x skyM9551) |
|
skyC140AKSD-N | Skyjacker 4"73-87GM 1/2 TON W/56" SPR (2x skyCR24S, 2x skyC140S, 1x skyC124AS, 2x skyN8051, 2x skyN8053) |
 |
skyC140AKSD8-B | Skyjacker 4" SYS 88-91 1/2T SUBURBAN (2x skyCR24S, 2x skyC140S, 1x skyC124AS8, 2x skyB8573, 2x skyB8551) |
|
skyC140AKSD8-H | Skyjacker 4" SYS 88-91 1/2T SUBURBAN (2x skyCR24S, 2x skyC140S, 1x skyC124AS8, 2x skyH7051, 2x skyH7073) |
|
skyC140AKSD8-M | Skyjacker 4" SYS 88-91 1/2T SUBURBAN (2x skyCR24S, 2x skyC140S, 1x skyC124AS8, 2x skyM9551, 2x skyM9573) |
|
skyC140AKSD8-N | Skyjacker 4" SYS 88-91 1/2T SUBURBAN (2x skyCR24S, 2x skyC140S, 1x skyC124AS8, 2x skyN8051, 2x skyN8053) |
|
skyC140AKSS-B | Skyjacker 4"SYS 73-87 1/2T SUB W/52" (2x skyC140S, 2x skyCR16S, 1x skyC124AS, 2x skyB8553, 2x skyB8551) |
|
skyC140AKSS-H | Skyjacker 4"SYS 73-87 1/2T SUB W/52" (2x skyC140S, 2x skyCR16S, 1x skyC124AS, 2x skyH7053, 2x skyH7051) |
|
skyC140AKSS-M | Skyjacker 4"SYS 73-87 1/2T SUB W/52" (2x skyC140S, 2x skyCR16S, 1x skyC124AS, 2x skyM9553, 2x skyM9551) |
|
skyC140AKSS-N | Skyjacker 4" SYS 73-87 1/2T SUB W/52" (2x skyC140S, 2x skyCR16S, 1x skyC124AS, 2x skyN8051, 2x skyN8053) |
|
skyC140AKSS8-B | Skyjacker 4"SYS 88091 1/2T SUB/52"SPR (2x skyC140S, 2x skyCR16S, 1x skyC124AS8, 2x skyB8553, 2x skyB8551) |
|
skyC140AKSS8-H | Skyjacker 4"SYS 88091 1/2T SUB/52"SPR (2x skyC140S, 2x skyCR16S, 1x skyC124AS8, 2x skyH7053, 2x skyH7051) |
|
skyC140AKSS8-M | Skyjacker 4"SYS 88091 1/2T SUB/52"SPR (2x skyC140S, 2x skyCR16S, 1x skyC124AS8, 2x skyM9553, 2x skyM9551) |
|
skyC140AKSS8-N | Skyjacker 4"SYS 88091 1/2T SUB/52"SPR (2x skyC140S, 2x skyCR16S, 1x skyC124AS8, 2x skyN8051, 2x skyN8053) |
|
skyC140BK-B | Skyjacker 4"SOFTR 73-87 GM 3/4 TON (2x skyC140S, 1x skyC140B, 2x skyB8553, 2x skyB8551) |
|
skyC140BK-H | Skyjacker 4"SOFTR 73-87 GM 3/4 TON (2x skyC140S, 1x skyC140B, 2x skyH7053, 2x skyH7051) |
|
skyC140BK-M | Skyjacker 4"SOFTR 73-87 GM 3/4 TON (2x skyC140S, 1x skyC140B, 2x skyM9553, 2x skyM9551) |
|
skyC140BK-N | Skyjacker 4" SOFTR 73-87 GM 3/4 TON (2x skyC140S, 1x skyC140B, 2x skyN8051, 2x skyN8053) |
|
skyC140BK8-B | Skyjacker 4" SOFTR KT,88-91 3/4 T SUB (2x skyC140S, 1x skyC140B8, 2x skyB8553, 2x skyB8551) |
|
skyC140BK8-H | Skyjacker 4" SOFTR KT,88-91 3/4 T SUB (2x skyC140S, 1x skyC140B8, 2x skyH7053, 2x skyH7051) |
|
skyC140BK8-M | Skyjacker 4" SOFTR KT,88-91 3/4 T SUB (2x skyC140S, 1x skyC140B8, 2x skyM9553, 2x skyM9551) |
|
skyC140BK8-N | Skyjacker 4" SOFTR KT,88-91 3/4 T SUB (2x skyC140S, 1x skyC140B8, 2x skyN8051, 2x skyN8053) |
|
skyC140BKS-B | Skyjacker 4"SR 73-87 GM 3/4 W/REAR SP (2x skyCR14S, 2x skyC140S, 1x skyC124BS, 2x skyB8553, 2x skyB8551) |
|
skyC140BKS-H | Skyjacker 4"SR 73-87 GM 3/4 W/REAR SP (2x skyCR14S, 2x skyC140S, 1x skyC124BS, 2x skyH7053, 2x skyH7051) |
|
skyC140BKS-M | Skyjacker 4"SR 73-87 GM 3/4 W/REAR SP (2x skyCR14S, 2x skyC140S, 1x skyC124BS, 2x skyM9553, 2x skyM9551) |
|
skyC140BKS-N | Skyjacker 4"SR 73-87 GM 3/4 W/REAR SP (2x skyCR14S, 2x skyC140S, 1x skyC124BS, 2x skyN8051, 2x skyN8073) |
|
skyC140BKSD-B | Skyjacker 4"73-87GM 3/4T SYS W/56"SPG (2x skyCR24S, 2x skyC140S, 1x skyC124BS, 2x skyB8553, 2x skyB8551) |
 |
skyC140BKSD-H | Skyjacker 4"73-87GM 3/4T SYS W/56"SPG (2x skyCR24S, 2x skyC140S, 1x skyC124BS, 2x skyH7053, 2x skyH7051) |
|
skyC140BKSD-M | Skyjacker 4"73-87GM 3/4T SYS W/56"SPG (2x skyCR24S, 2x skyC140S, 1x skyC124BS, 2x skyM9553, 2x skyM9551) |
|
skyC140BKSD-N | Skyjacker 4"73-87GM 3/4T SYS W/56"SPG (2x skyCR24S, 2x skyC140S, 1x skyC124BS, 2x skyN8051, 2x skyN8053) |
|
skyC140CK-B | Skyjacker 4" SOFTR 77-87 GM 1 TON (2x skyC140S, 1x skyC140C, 2x skyB8573, 2x skyB8551) |
|
skyC140CK-H | Skyjacker 4" SOFTR 77-87 GM 1 TON (2x skyC140S, 1x skyC140C, 2x skyH7051, 2x skyH7073) |
|
skyC140CK-M | Skyjacker 4" SOFTR 77-87 GM 1 TON (2x skyC140S, 1x skyC140C, 2x skyM9551, 2x skyM9573) |
|
skyC140CK-N | Skyjacker 4" SOFTR 77-87 GM 1 TON (2x skyC140S, 1x skyC140C, 2x skyN8051, 2x skyN8073) |
|
skyC140CKS-B | Skyjacker 4" 77-87 GM 1 TON SYSTEM (2x skyCR24S, 2x skyC140S, 1x skyC124CS, 2x skyB8573, 2x skyB8551) |
|
skyC140CKS-H | Skyjacker 4" 77-87 GM 1 TON SYSTEM (2x skyCR24S, 2x skyC140S, 1x skyC124CS, 2x skyH7051, 2x skyH7073) |
|
skyC140CKS-M | Skyjacker 4" 77-87 GM 1 TON SYSTEM (2x skyCR24S, 2x skyC140S, 1x skyC124CS, 2x skyM9551, 2x skyM9573) |
 |
skyC140CKS-N | Skyjacker 4" 77-87 GM 1 TON SYSTEM (2x skyCR24S, 2x skyC140S, 1x skyC124CS, 2x skyN8051, 2x skyN8073) |
 |
skyC140 | Skyjacker 4" SOFTR FRT SPRGS 73-87 GM (2x skyC140S, 1x skySE11C) |
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 13:30:41
Features
- Constructed As Progressive Multileaf Packs
- Limited Lifetime Warranty
- Load Capacity Will Be Equal or Greater Than OE
- Made With American Steel
Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Product Details
| Description: | SOFTRIDE FRONT SPRING/4IN. GM |
| Lift/Drop Height: | 4 in. |
| Part Number: | skyC140S |
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Skyjacker, Skyjacker Suspensions |
| StreetFX SKU | skyC140S |
| SFX Item ID | 4326951 |
| Accounting SKU | sky-C140S |
| Manufacturer SKU | C140S |
| Manufacturer UPC | 803696118109 |
| Alternative References | C140S, SJA-C140S |
Lift Spring, Leaf-Style, Front, Black Chevy, GMC, Each
Softride lift leaf springs from Skyjacker are designed to give you all of the rugged off-road handling you need, while providing the smooth street riding characteristics that you demand. They're constructed as multi-leaf packs, so their GVW rating and load-carrying capacity will be equal to or greater than those of the vehicle's original equipment. Only high-quality American steel is used in their construction, so you can be assured that you're getting a dependable product.
| Product Attributes | |
|---|---|
| Brand | Skyjacker Suspensions |
| Manufacturer's Part Number | C140S |
| Part Type | Leaf Springs |
| Product Line | Skyjacker Softride Lift Leaf Springs |
| UPC | 803696118109 |
| Ride Height | Lifted |
| Ride Height Note | Additional ride height information may be available for your vehicle, please refer to the app tab. |
| Spring Positioning | Front |
| Front Spring Raised Amount Range (in.) | 4.00 in. |
| Progressive Rate Spring | Yes |
| Spring Rate (lbs./in.) | 490 lbs./in. |
| Bushings Included | No |
| Spring Finish | Black |
| Quantity | Sold individually. |
| Notes | Spring has a quantity of 5 leafs and a free arch length of 5.00 in. |
| Manufacturer Attributes | |
|---|---|
| Lift/Drop Height | 4 in. |
| Manufacturer Designation | SOFTRIDE FRONT SPRING/4IN. GM |
| Product Class | Leaf Spring Assembly |
| Construction/Type | SOFTRIDE FRONT SPRING/4in. GM |
| Product Outline | Constructed As Progressive Multileaf Packs Load Capacity Will Be Equal or Greater Than OE Made With American Steel Limited Lifetime Warranty |
| Vehicle Brief | SOFTRIDE FRONT SPRING/4in. GM |
| Market 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. |
Compatibility
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