Opuiue Leaf Spring Bolt Kit 9/16" x 4-1/2" — Grade 8 Hardened Steel, 6 Bolts/6 Lock Nuts/12 Washers for 1988–2002 Chevy & GMC

Opuiue's Leaf Spring Bolt Kit is a complete Grade 8 hardened-steel replacement set (6 bolts, 6 lock nuts, 12 washers) sized 9/16" x 4-1/2" for restoring secure leaf-spring connections on compatible Chevrolet and GMC trucks from 1988–2002.

Whether you're rebuilding a tired suspension or replacing corroded hardware after years of service, this kit supplies the heavy-duty fasteners designed to match original-equipment fit and function. Manufactured from Grade 8 hardened steel, the components resist deformation under load and are built for demanding suspension duties on pickups and SUVs. The set includes everything needed for a full leaf-spring bolt replacement on both sides of the rear axle where applicable, so you can complete the job without sourcing individual pieces.

Will these bolts fit my 1988–2002 Chevrolet or GMC truck?

The kit is made for many Chevy and GMC models from 1988 through 2002, including C/K 1500/2500/3500 series, Silverado, Sierra, Suburban, Tahoe and Yukon. Fitment depends on the specific year, model, axle and leaf spring configuration, so always confirm compatibility with your vehicle details before ordering.

• Fits: 1988–2002 C1500, K1500, C2500, K2500, C3500, K3500, Silverado, Sierra, Suburban, Tahoe, Yukon
• Hardware: 6 bolts, 6 lock nuts, 12 flat washers
• Bolt size: 9/16" diameter × 4-1/2" length
• Double-check: verify make, model, year, and trim

How durable are these Grade 8 bolts for suspension use?

Grade 8 hardened steel is chosen for high-strength automotive fasteners where shear and tensile loads are significant. These bolts and accompanying lock nuts and washers are heat-treated to resist stretching and provide reliable clamping force under repeated load cycles.

• Material: Grade 8 hardened steel for superior tensile strength
• Wear resistance: heat-treated to reduce deformation
• Corrosion resistance: plated finish helps protect from rust
• Designed for heavy-duty leaf-spring connections and towing use

What's included and is the kit ready for immediate installation?

This kit arrives complete with every fastener needed to service multiple leaf-spring mounting points: six bolts, six locking nuts and twelve flat washers. The parts are sized for direct replacement of OE hardware, simplifying installation when original bolts are worn, corroded or incorrect.

• Complete set: 6 × 9/16" × 4-1/2" bolts, 6 lock nuts, 12 flat washers
• OE-style fitment: engineered to match factory dimensions
• Install-ready: no need to buy additional washers or nuts
• Recommended: use correct torque specs and replace in matched pairs

What maintenance or precautions should I follow after installing these fasteners?

After installation, re-torque the fasteners following the vehicle manufacturer’s sequence and specs to ensure safe clamping force. Periodic inspections for corrosion, loosening, or wear are advised—especially if you use the vehicle for towing, off-roading, or in regions with road salt.

• Follow OEM torque values and re-torque after initial break-in miles
• Inspect annually or after heavy-duty use for loosening or corrosion
• Replace in matched sets if any component shows damage
• Use anti-seize or recommended thread lubricant if specified by OEM

Who is this for: The Opuiue Leaf Spring Bolt Kit is for mechanics, DIY truck owners and restoration specialists who need a robust, OE-style replacement for leaf-spring mounting hardware on late-80s through early-2000s Chevrolet and GMC pickups and SUVs. Choose this kit when you want Grade 8 strength, complete fastener coverage for a multi-point replacement, and the convenience of a matched set to restore suspension reliability without hunting down individual parts.