SKU: FTS21307 / UPC: 674866136236
Fabtech 2025 Chevrolet Silverado 1500 and GMC Sierra 1500 3-Inch Uniball Upper Control Arm System Component Box
The Fabtech 3-inch Uniball Upper Control Arm (UCA) System Component Box. This direct-fit assembly delivers precise suspension geometry for enhanced on-road stability and off-road capability, allowing your truck to handle larger tires up to 33 inches without compromising alignment or introducing CV bind at full droop. Built for daily drivers and trail enthusiasts alike, this system replaces factory upper control arms to support a 3-inch front lift while preserving factory ride dynamics and ensuring long-term durability under demanding conditions.
Key Fitment Details
- Year: 2025
- Make/Model: Chevrolet Silverado 1500 Pickup (2WD/4WD); GMC Sierra 1500 Pickup (2WD/4WD)
- Lift Compatibility: Designed for use with 3-inch lift kits like Fabtech K1213 or K1214 provides necessary caster correction for proper wheel alignment
Exclusions: Does not fit models with adaptive ride control or electronic suspension confirm compatibility for Denali/AT4 trims
What’s Included in the FTS21307 Component Box
This complete component box contains everything required for a straightforward installation on your 2025 GM 1500:
- Pair of forged aluminum Uniball Upper Control Arms (driver and passenger side)
- 1-inch stainless steel Uniball bearings (heat-treated 17-4 stainless steel for corrosion resistance and smooth articulation)
- Precision-machined stainless steel misalignment spacers for full suspension travel clearance
- High-density urethane bushings on frame-side pivots to minimize noise and vibration
- All necessary Grade 8 hardware, including bolts, nuts, and washers for bolt-on installation
- Detailed installation instructions (no drilling or welding required; installs in approximately 2-3 hours with basic tools)
Technical Specifications
- Construction: Heavy-duty 2.5-inch diameter tubing with reinforced box-section design for maximum strength powder-coated black finish for rust protection
- Uniball Specs: 1-inch inner diameter Uniball with grease fittings for easy maintenance rated for 1,500+ hours of extreme use
- Alignment Benefits: Built-in caster adjustment of +2.5 degrees to maintain factory toe and camber settings post-lift
- Tire/Wheel Fitment: Clears up to 33×12.50R20 tires on 9-inch wide wheels; maintains fender clearance without trimming
- Warranty: Lifetime limited warranty against defects in materials and workmanship (excludes normal wear on bushings and bearings)
Packaging and Shipping Information
- Part Number: FTS21307
- UPC: 674866136236
- Component Weight: Approximately 28 lbs (pair of UCAs with hardware)
- Shipping Box Dimensions: 23 inches (length) x 12 inches (width) x 7 inches (height)
- Shipping Weight: 32 lbs (includes packaging)
The Fabtech FTS21307 stands out as the practical choice for 2025 Silverado 1500 and Sierra 1500 owners seeking reliable lift performance. Its robust Uniball design outperforms standard ball joint arms by reducing flex and bind, resulting in sharper steering response and consistent handling across varied terrain. Install this component box to unlock your truck’s full potential whether navigating highways or conquering rough trails while keeping maintenance simple and costs down compared to full aftermarket overhauls.
Order now for seamless integration with your existing or planned 3-inch suspension setup.
NOTE: Pictures are for reference only and does not represent what you will receive.
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