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UMI ABF803-1-R 68-72 A-Body Stage 2 Kit, 1 Inch Lowering, Red
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- ISPM 15 heat-treated Euro palletized & weatherproof shrink-wrapped
- Insured European road freight delivery with hydraulic tail-lift service
- Dispatches in 1–2 business days from our UK & European Logistics Centre
- Transit typically 1–3 business days (UK) / 3–6 business days (Continental Europe)
Need a matched transmission, controls or wiring package? Speak with a parts specialist.
Details & Inspection Notes
UMI positions this Stage 2 kit (ABF803-1-R) as the entry point of its A-Body handling lineup for 68-72 Buick, Chevy, Oldsmobile, and Pontiac cars, built around a fixed-valve, gas-charged monotube shock rather than the adjustable dampers UMI uses on its higher-tier packages. Spring rate is 530 lb/in, bringing the car down 1 inch at both ends. Powder coat covers the tubular control arms and trailing arms, the front sway bar runs solid at 1.25 inches, and a solid 1-inch rear bar wears red powder coat; the bushings themselves are polyurethane, finished black and red.
What's included
- 530 lb/in coil springs
- Fixed-valve, gas-charged monotube shocks
- Tubular control arms and trailing arms under powder coat
- Sway bars front and rear, plus a chassis stiffener
Before you order
Dropping the car 1 inch at both ends is baked into this kit, so weigh that against tire and wheel clearance ahead of ordering. Damping is set at one fixed value here; step up to one of UMI's higher-tier packages if rebound adjustment matters to you. This box does not include tie rod sleeves.
Common questions
Can the shocks be adjusted? No, they run at one fixed valve setting.
How much lower does this kit sit? 1 inch, front and rear.
What color is the rear bar? Red powder coat.
Specifications
KEY SPECS | |
|---|---|
| MFG. Part # | ABF803-1-R |
| Brand | UMI Performance |
| Bushing Material | Polyurethane |
| Hardware Included | Yes |
| Spring Rate | 530 lbs. |
| Front Coil Springs Included | Yes |
| Rear Coil Springs Included | Yes |
| Rear Leaf Springs Included | No |
| Front Shock Struts Included | Yes |
| Front Shock Type | Gas-charged monotube |
| Rear Shock Struts Included | Yes |
| Rear Shock Type | Gas-charged monotube |
| Front Sway Bar Included | Yes |
| Front Sway Bar Finish | Powder Coated |
| Front Sway Bar Type | Solid |
| Front Sway Bar Diameter | 1.25″ |
| Rear Sway Bar Included | Yes |
| Rear Sway Bar Finish | Red powdercoated |
| Rear Sway Bar Type | Solid |
| Rear Sway Bar Diameter | 1″ |
| Tie Rod Sleeves Included | No |
| End Link Bushings Included | Yes |
| Rear Leaf Spring Bushings Included | No |
| Sway Bar Bushings Included | Yes |
| Upper Trailing Arms Included | Yes |
| Lower Trailing Arms Included | Yes |
| Trailing Arm Mount Braces Included | No |
| Panhard Bar Included | No |
| Torque Arm Included | No |
| Upper Control Arms Included | Yes |
| Lower Control Arms Included | Yes |
| Control Arm Style | Tubular |
| Control Arm Material | Steel |
| Control Arm Finish | Powder Coated |
| Front Strut Tower Bar Included | No |
| K-Member Support Brace Included | No |
| Rear Strut Tower Bar Included | No |
| Subframe Connectors Included | No |
| Chassis Stiffener Included | Yes |
| Calipers Included | No |
| Rotors Included | No |
| Brake Pads Included | No |
| Brake Lines Included | No |
| Wheel Studs Included | No |
| Center Link Included | No |
| Spindles Included | No |
| Inner Tie Rod Ends Included | No |
| Outer Tie Rod Ends Included | No |
| Front Suspension Height | 1.0 Inch Lowered |
| Rear Suspension Height | 1 Inch Lowered |
| Bushing Color | Black/Red |
| Progressive Rate Spring | No |
GENERAL | |
| Finish | Powder Coated |
| Sold in Quantity | Set |
Suspension Setup & Installation Checklist
- Inspect top mounts, damper seals, bushings, and ball joints prior to fitment.
- Set initial spring preload, collar heights, and damper rebound clicks symmetrically left to right.
- Torque all suspension control arm pivot bolts while the vehicle is at resting ride height (loaded suspension).
- Perform a complete 4-wheel laser alignment once ride height has settled to ensure optimal handling and tire wear.
Full terms: 30-day warranty · returns