🚀 UMI Performance Stage 3.5 Handling Kit – Ultimate Suspension Upgrade for GM G-Body!

Upgrade your Buick, Chevy, GMC, Oldsmobile, or Pontiac G-Body with the UMI Performance Stage 3.5 Handling Kit. Designed to eliminate the soft, floating stock suspension feel, this package enhances steering precision, cornering ability, and overall ride quality.

Featuring adjustable monotube shocks, 1” or 2” lowering springs, tubular control arms, high-performance sway bars, and rear trailing arms with Roto-Joints, this kit transforms your G-Body into a capable, high-performance machine. Whether you’re taking on tight corners, improving your street ride, or optimizing your suspension for AutoX, the UMI Stage 3.5 kit delivers exceptional handling and responsiveness.

Built entirely in the USA, this bolt-on performance kit is manufactured from high-quality US materials and engineered for maximum durability and performance.

🔹 Key Features & Benefits

✅ Precision Handling & Steering Response – Delrin & Polyurethane bushings eliminate deflection & improve driver feedback
✅ Adjustable Rebound Monotube Shocks – Fine-tune ride quality for daily driving, AutoX, or light drag racing
✅ 1” or 2” Lowering Springs – Linear rate springs for a controlled, performance-oriented ride
✅ Heavy-Duty Tubular A-Arms – Upper control arms with additional caster for improved straight-line stability
✅ 1-1/4” Front Sway Bar & 1” Pro-Touring Rear Bar – Optimized roll resistance & balanced handling
✅ Rear Trailing Arms with Roto-Joints – Superior articulation, less bind, & better rear axle control
✅ High-Quality Powder-Coated Finish – Enhanced durability & corrosion resistance
✅ Complete Bolt-On Suspension Solution – No cutting, welding, or fabrication required
✅ Made in the USA – High-quality materials & precision craftsmanship

🔹 Technical Specifications

⚙️ Suspension Components & Performance

⚙️ Fitment & Compatibility

⚙️ Build Quality & Durability

🔹 What’s Included in the Kit?

✔️ UMI rebound adjustable monotube shocks
✔️ 1” or 2” lowering springs (600 lb/in front, 130 lb/in rear)
✔️ Tubular front lower control arms with Delrin bushings
✔️ Tubular upper front control arms with Delrin bushings & ½” taller ball joints
✔️ Heavy-duty 1-1/4” front sway bar with bushings & end-links
✔️ Rear pro-touring 1” sway bar (chassis mounted design)
✔️ Rear lower control arms featuring Roto-Joint & Polyurethane combination
✔️ Adjustable rear upper control arms with Roto-Joints
✔️ Heavy-duty frame braces with new high-grade hardware
✔️ Replacement polyurethane rear end housing bushings
✔️ New Grade 8 proper mounting hardware

⚠ Note: Prop not included – if using an aftermarket rear axle, contact UMI for correct U-bolts.

❓ Frequently Asked Questions (FAQ)

🔹 What’s the difference between 1” and 2” lowering springs?

• 1” Lowering – Slightly lower than stock but maintains near-OEM clearance
• 2” Lowering – A more aggressive stance while still allowing proper suspension travel

🔹 Is this kit compatible with aftermarket rear axles?
Yes, but factory rear axles require 2.750” axle tubes. For aftermarket rear ends, contact UMI for 3.000” or 3.250” U-bolts.

🔹 Can I use this kit for daily driving?
Absolutely! The adjustable shocks & premium components make it perfect for street performance, AutoX, and even occasional drag racing.

🔹 Will I need any additional modifications to install this kit?
No, this kit is fully bolt-on and requires no cutting or welding.

🔹 Does this kit work with factory G-Body steering components?
Yes, but for maximum performance, upgrading to UMI’s steering components is recommended.

🔥 Call to Action – Order Now!

Upgrade your GM G-Body suspension with UMI’s Stage 3.5 Handling Kit for superior control, responsiveness, and cornering ability. Whether you’re a street performance enthusiast, an AutoX competitor, or looking for improved ride quality, this kit delivers precision engineering & race-proven results.

🛒 Limited stock available – Order today for fast shipping! 🚀