FLYCLE 3" Rear Lift Blocks for Silverado 1500 / Sierra 1500 — 1999–2024, Forged 6061-T6 Aluminum with Extended U-Bolts

If you want a straightforward, durable way to level the rear of your full-size pickup without complex suspension changes, these lift blocks deliver a clean 3" rise to match front lift or accommodate larger tires. Designed specifically for Chevy Silverado 1500 and GMC Sierra 1500 model years spanning 1999–2024 (with compatibility notes in the product listing), the kit includes forged aluminum blocks with anodized finishes and extended square U-bolts for a secure installation.

How do these rear lift blocks change my truck’s stance?

Installing the FLYCLE 3" rear blocks raises the axle relative to the leaf springs, creating a leveler effect that reduces the factory rear-sag look. The result is improved visual balance and room for slightly larger tires without altering front suspension geometry.

• Guaranteed 3" rear lift for specified models.
• Creates a more aggressive, level profile front-to-rear.
• Allows modest tire size increases while maintaining factory ride height up front.

What materials and manufacturing standards are used?

These blocks are forged from aircraft-grade 6061-T6 aluminum and finished with anodic oxidation and heat treatment to enhance hardness and resistance to corrosion. CNC machining ensures dimensional accuracy so each block aligns with OE mounting points for secure fitment.

• Forged 6061-T6 aluminum for strength and light weight.
• CNC machining for precise tolerances and consistent fit.
• Anodized finish and heat treatment to resist wear and corrosion.

What comes in the kit and how is it installed?

The FLYCLE kit includes a matching pair of rear lift blocks plus extended square U-bolts sized for the 3" raise. Installation replaces the factory blocks and U-bolts; most technicians or experienced DIYers can complete the swap using common tools and standard torque specifications.

• Two forged rear lift blocks (3" rise).
• Extended square U-bolts sized to maintain clamping force at the new ride height.
• Installation uses factory spring perch locations—no cutting or welding required.

Are there vehicle or warranty considerations I should know?

FLYCLE backs the leveling kit with a 2-year after-sales service policy to cover fitment or manufacturing issues. Always verify exact model-year compatibility (1999–2024 Silverado 1500 and 1999–2024 Sierra 1500 listed) and confirm brake line and driveline clearances after lift installation.

• 2-year FLYCLE after-sales coverage included.
• Check for brake line length and driveshaft angle after fitment.
• Professional alignment recommended after lift installation.

Who is this for: This kit is aimed at Silverado and Sierra 1500 owners who want a clean, reliable 3" rear lift to level the truck or fit bigger tires without a complex suspension overhaul. It's ideal for DIY mechanics and professional installers seeking a precision-machined, corrosion-resistant solution with the backing of a two-year service policy.