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Drop your F-Body 2 inches with a complete US Steel leaf spring and poly shackle combo
The UMI Performance 262025 rear leaf spring and poly shackle kit lowers a 1970-1981 GM F-Body an average of 2 to 2-1/2 inches below stock ride height. UMI262025 pairs a set of multi-leaf, US Steel lowering springs with UMI's laser cut poly shackle kit, so the whole rear ride height and bushing package installs in one job. The springs bolt directly into the stock mounting locations with no drilling or cutting, and the front rubber bushing arrives pre-installed for a faster install.
Key Features
- UMI262025 lowers the rear of the car an average of 2 to 2-1/2 inches below stock height.
- High quality US Steel, multi-leaf spring construction for a firm, predictable ride.
- Laser cut poly shackle kit replaces the factory rubber bushing and shackle assembly.
- Direct bolt-in installation at the factory spring mounting points.
- Front rubber bushing is pre-installed on the spring for convenience.
- 100 percent Made In USA construction.
Fitment
| Year Range | Make | Model |
|---|---|---|
| 1970-1981 | Chevrolet | Camaro |
| 1970-1981 | Pontiac | Firebird |
Specifications
| Detail | Value |
|---|---|
| SKU | 262025 |
| Brand | UMI Performance |
| Position | Rear |
| Kit Contents | Multi-leaf lowering springs (pair) and poly shackle kit |
| Drop Height | Average 2 to 2-1/2 inches below stock |
| Spring Material | US Steel, multi-leaf construction |
| Bushing Type | Polyurethane rear shackle bushings |
| Installation | Direct bolt-in, no modification required |
| Country of Manufacture | Made in the USA |
| UPC | Not published |
What's Included
- Pair of multi-leaf US Steel lowering springs with front bushing pre-installed
- Laser cut poly shackle kit with polyurethane bushings
- All mounting hardware
About UMI Performance
UMI Performance designs, tests, and manufactures suspension components in Philipsburg, Pennsylvania, using North American steel and in-house laser cutting and welding. UMI develops its leaf spring and shackle kits specifically for GM F-Body applications.
Related Parts
Frequently Asked Questions
What is the 262025?The 262025 is a UMI Performance combo kit that pairs multi-leaf US Steel lowering springs with a laser cut poly shackle kit for the 1970-1981 GM F-Body, lowering the rear an average of 2 to 2-1/2 inches.
Does the 262025 require any drilling or cutting to install?No. The springs and shackle kit bolt directly into the factory mounting locations with no modification required.
Is the front bushing included on the spring?Yes, the front rubber bushing arrives pre-installed on the leaf spring for a faster installation.
What type of bushing does the shackle kit use?The shackle kit uses polyurethane bushings in a laser cut shackle assembly, replacing the factory rubber bushing setup.
How much does the 262025 lower the rear of the car?UMI states an average drop of 2 to 2-1/2 inches below stock ride height once installed.
Is this kit suitable for daily driving?Yes. The multi-leaf spring design is intended to give a firm yet street driveable ride while providing the lowered stance.
Where is this kit manufactured?UMI Performance manufactures this kit in Philipsburg, Pennsylvania, using US Steel.
Install Instructions
- Support the vehicle safely on jack stands and allow the rear axle to hang freely.
- Remove the factory rear leaf springs, shackles, and bushings from both sides.
- Install the new front spring eye into the factory front mount using the pre-installed bushing.
- Position the rear spring eye and install the new poly shackle kit at the factory rear mount.
- Torque all shackle and mounting hardware to the vehicle manufacturer's specification.
- Repeat on the opposite side, then lower the vehicle and verify ride height.
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