UMI Performance 64025-B Stage 2.5 Handling and Lowering Kit Black

The UMI Performance 64025-B is a comprehensive Stage 2.5 Handling and Lowering Kit designed to dramatically improve both the stance and driving dynamics of your classic GM C10 truck. This all-inclusive kit delivers an aggressive 4.5" front / 6" rear drop while simultaneously upgrading cornering capability, sway control, and ride quality — whether you're cruising the highway, carving corners, or drag racing.

The front drop is achieved by pairing UMI lowering springs with precision-engineered drop spindles that accept stock GM brakes and wheel bearings, making the upgrade straightforward without sacrificing brake compatibility. Out back, the UMI flip kit, shock relocation bracket, and factory leaf springs work together to deliver the full 6" rear drop.

Ride quality and handling balance are managed by a heavy-duty 1-3/8" tubular front sway bar paired with a three-way adjustable 1" rear sway bar, giving you tunable control over body roll and cornering balance. The included Viking double adjustable shocks offer an impressive 19 compression and 19 rebound settings, allowing precise tuning for everything from daily driving to performance cornering and drag strip use.

All UMI Performance components are proudly manufactured in the USA using North American-sourced steel, laser-cut precision, and high-quality Tiger Dry Lac powder coat for a durable, long-lasting finish. This kit is available in black (64025-B) and has been proven on Power Tour events, daily drivers, and corner-carving builds alike. Note: minor drilling is required for installation.

Kit Features:

• 4.5" front / 6" rear drop for an aggressive, lowered stance
• Drop spindles compatible with stock GM brakes and wheel bearings
• UMI flip kit and shock relocation bracket for maximum rear drop
• 1-3/8" heavy-duty tubular front sway bar for reduced body roll
• Three-way adjustable 1" rear sway bar for tunable handling balance
• Viking double adjustable shocks with 19 compression and 19 rebound settings
• Power Tour, daily driver, and corner carver proven performance
• Minor drilling required for installation
• 100% Made in the USA