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Complete the Lift System With Application Matched Hardware
Skyjacker C124AS is a suspension component box that supplies the U bolts and bushings required to complete supported Skyjacker GM lift systems. It combines application matched suspension geometry with durable components for street, towing, and off road use while maintaining predictable control.
Key Features
- Application matched front and rear U bolt hardware for the C124AS package
- Bushing components selected for supported Skyjacker spring systems
- Designed to complement C125 family lift packages
- Supports a complete, organized suspension installation
- Limited lifetime manufacturer warranty
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 1973 to 1974 | Chevrolet | Blazer | |
| 1987 | Chevrolet | Blazer | Custom Deluxe |
| 1987 | Chevrolet | Blazer | Silverado |
| 1975 to 1981 | Chevrolet | K10 | Cheyenne |
| 1981 to 1986 | Chevrolet | K10 | Custom |
| 1975 to 1980 | Chevrolet | K10 | Custom Deluxe |
| 1981 | Chevrolet | K10 | Deluxe |
| 1975 to 1986 | Chevrolet | K10 | Scottsdale |
| 1975 to 1986 | Chevrolet | K10 | Silverado |
| 1973 to 1974 | Chevrolet | K10 Pickup | |
| 1973 to 1974 | Chevrolet | K10 Suburban | |
| 1981 to 1986 | Chevrolet | K10 Suburban | Custom |
| 1975 to 1980 | Chevrolet | K10 Suburban | Custom Deluxe |
| 1981 | Chevrolet | K10 Suburban | Deluxe |
| 1975 to 1980 | Chevrolet | K10 Suburban | Scottsdale |
| 1982 | Chevrolet | K10 Suburban | Scottsdale |
| 1984 to 1986 | Chevrolet | K10 Suburban | Scottsdale |
| 1975 to 1977 | Chevrolet | K10 Suburban | Silverado |
| 1979 to 1980 | Chevrolet | K10 Suburban | Silverado |
| 1982 to 1983 | Chevrolet | K10 Suburban | Silverado |
| 1985 to 1986 | Chevrolet | K10 Suburban | Silverado |
| 1976 | Chevrolet | K5 Blazer | |
| 1975 to 1980 | Chevrolet | K5 Blazer | Cheyenne |
| 1981 to 1986 | Chevrolet | K5 Blazer | Custom |
| 1975 | Chevrolet | K5 Blazer | Custom Deluxe |
| 1977 to 1980 | Chevrolet | K5 Blazer | Custom Deluxe |
| 1981 | Chevrolet | K5 Blazer | Deluxe |
| 1984 | Chevrolet | K5 Blazer | Scottsdale |
| 1978 | Chevrolet | K5 Blazer | Silverado |
| 1980 to 1986 | Chevrolet | K5 Blazer | Silverado |
| 1987 | Chevrolet | V10 | Custom Deluxe |
| 1987 | Chevrolet | V10 | Scottsdale |
| 1987 | Chevrolet | V10 | Silverado |
| 1987 | Chevrolet | V10 Suburban | Custom Deluxe |
| 1987 | Chevrolet | V10 Suburban | Scottsdale |
| 1987 | Chevrolet | V10 Suburban | Silverado |
| 1973 to 1987 | GMC | Jimmy | |
| 1975 to 1985 | GMC | Jimmy | High Sierra |
| 1975 to 1987 | GMC | Jimmy | Sierra Classic |
| 1975 to 1982 | GMC | Jimmy | Sierra Grande |
| 1975 to 1978 | GMC | K15 | |
| 1975 to 1978 | GMC | K15 | High Sierra |
| 1977 | GMC | K15 | Indy Hauler |
| 1975 to 1978 | GMC | K15 | Sierra Classic |
| 1975 to 1978 | GMC | K15 | Sierra Grande |
| 1975 to 1978 | GMC | K15 Suburban | |
| 1975 to 1978 | GMC | K15 Suburban | High Sierra |
| 1975 to 1978 | GMC | K15 Suburban | Sierra Classic |
| 1975 to 1978 | GMC | K15 Suburban | Sierra Grande |
| 1973 to 1974 | GMC | K15/K1500 Pickup | |
| 1973 to 1974 | GMC | K15/K1500 Suburban | |
| 1979 to 1986 | GMC | K1500 | |
| 1979 to 1986 | GMC | K1500 | High Sierra |
| 1979 to 1986 | GMC | K1500 | Sierra Classic |
| 1979 to 1982 | GMC | K1500 | Sierra Grande |
| 1979 to 1986 | GMC | K1500 Suburban | |
| 1979 to 1986 | GMC | K1500 Suburban | High Sierra |
| 1979 to 1986 | GMC | K1500 Suburban | Sierra Classic |
| 1979 to 1982 | GMC | K1500 Suburban | Sierra Grande |
| 1987 | GMC | V1500 | |
| 1987 | GMC | V1500 | High Sierra |
| 1987 | GMC | V1500 | Sierra Classic |
| 1987 | GMC | V1500 Suburban | |
| 1987 | GMC | V1500 Suburban | High Sierra |
| 1987 | GMC | V1500 Suburban | Sierra Classic |
Specifications
| Detail | Value |
|---|---|
| Manufacturer Part Number | C124AS |
| UPC | 803696117416 |
| Product Type | Suspension lift component box |
| System Compatibility | Supported C125 family GM lift systems |
| Lift Range | 2.5 to 4 inches depending on the complete system |
| Primary Components | Front and rear U bolt kits with bushings |
| Warranty | Limited lifetime |
What's Included
- Front U bolt kit
- Rear U bolt kit
- Suspension bushing kit
- Application matched installation hardware
- Application matched components for C124AS
About Skyjacker
Skyjacker has engineered suspension systems in West Monroe, Louisiana since 1970. The C124AS application reflects the brand's focus on vehicle specific spring geometry, controlled ride quality, and durable components backed by a limited lifetime warranty.
Related Parts
- Skyjacker 2.5" SR FRT SPRGS 73-87 GM
- Skyjacker 2.5"SR 73-87 GM 1/2 W/RR SP
- Skyjacker 2.5"SR 73-87 GM 1/2 W/RR SP
FAQ
What is the C124AS?It is a suspension component box that supplies the U bolts and bushings required to complete supported Skyjacker GM lift systems. The package is engineered as an application matched Skyjacker suspension solution for controlled ride height, clearance, and handling.
Is this a complete lift kit?No. This is a component box intended to complement a compatible Skyjacker spring and lift system.
What hardware is included?The component box supplies front and rear U bolt kits, bushings, and application matched installation hardware.
Can I reuse my original U bolts?No. Suspension U bolts should not be reused after they have been stretched and torqued.
What lift heights does this support?The component box is used with supported systems in the 2.5 to 4 inch range, depending on the exact application and complete kit.
Does this include leaf springs?No. Leaf springs and other major suspension components are sold separately or supplied in the complete system.
Is professional installation recommended?Yes. Axle support, spring alignment, fastener torque, and final alignment are safety critical.
When should the U bolts be retorqued?Retorque them after the initial break in mileage and inspect them during routine suspension service.
Install Instructions
- Confirm C124AS matches the vehicle and complete suspension configuration before disassembly.
- Raise and securely support the vehicle and axles according to the factory procedure.
- Remove the original U bolts and bushings only after the axle and spring assembly are fully supported.
- Install the supplied bushings in the correct spring eyes and shackles.
- Position the axle and install the matched U bolts without reusing stretched original hardware.
- Tighten the U bolts evenly in a cross pattern to the specified torque.
- Set the vehicle on the ground, settle the suspension, and verify alignment and driveline clearance.
- Retorque the U bolts after the initial break in mileage.
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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