Tuff Country 97029 Block & Ubolt Kit - 3" x (H) x 2 1/2" (W) x 4 3/4" (L) Tapered

Elevate the rear stance of your Chevy Silverado 1500 with the Tuff Country 97029 Block & U-Bolt Kit. This bolt-on kit is designed for 1999–2025 Silverado 1500 and GMC Sierra 1500 4WD pickups, using 3" tall tapered lift blocks to replace the factory 1.5" blocks and deliver a steady 1.5" rear lift while preserving a factory-like ride.

• Lift block design: 3" tall tapered blocks (3" H x 2.5" W x 4.75" L) replace the factory 1.5" blocks to achieve a 1.5" rear lift.
• Block material: Heavy‑duty cast iron for lasting strength and durability.
• Tapered profile: Designed to minimize driveline vibration and help maintain smooth operation.
• U-bolt kit: Extended zinc-plated rear ubolts specifically sized for the Silverado 1500 (9/16" x 2 3/4" x 12 5/8" – square).
• Hardware included: Complete mounting hardware with washers and nuts for a straightforward bolt‑on installation.
• Vehicle fitment: Replaces factory blocks on rear axles only; not intended for front axles.
• Shocks compatibility: For blocks 2" in height or taller, extended-length shocks are often required—check compatibility in the Shock Absorbers guidance.
• Finish and protection: Zinc-coated hardware and corrosion-resistant blocks for lasting use in varied conditions.
• Brand and engineering: Specifically engineered by Tuff Country for the Chevy Silverado 1500 to ensure proper fit and reliable performance.

This kit is a practical, bolt-on solution for restoring a first‑class rear stance when towing, hauling, or carrying heavier loads. By replacing the factory block with tapered, cast‑iron blocks and using purpose‑built extended u-bolts, you can achieve a consistent ride height while maintaining factory ride characteristics. Ideal for 1999–2025 Silverado 1500 and GMC Sierra 1500 4WD trucks, it provides a durable, long‑lasting upgrade that supports your truck’s rear suspension geometry without compromising everyday drivability.