ONAGAD Tailgate Hinge Kit for 1999–2007 Chevy Silverado & GMC Sierra — Heavy-Duty Steel, Corrosion-Resistant

ONAGAD tailgate hinge kit is a heavy-duty replacement set engineered to restore smooth, secure opening and closing on 1999–2007 Chevy Silverado and GMC Sierra trucks.

If your pickup’s tailgate droops, rattles, or won’t close solidly, a worn or corroded hinge is often the culprit — and replacing the hinge assembly is a quick, affordable fix. This kit supplies left and right heavy‑gauge steel hinges with durable coatings and solid pivots intended to match factory fitment on many Chevy, GMC and some Hummer models listed for 1999–2007. The parts are designed to bolt in using original fasteners or the included hardware when required, returning the tailgate to reliable operation.

How will these hinges improve my tailgate’s performance?

Replacing bent or rusted hinges eliminates unwanted movement, buzzing, and accidental openings while driving. The ONAGAD kit uses reinforced pivot points and corrosion-resistant finishes to deliver firmer, more stable tailgate operation compared with tired OEM hinges.

• Solid metal pivots reduce slack and wobble.
• Galvanized plus black electrophoretic coatings resist rust.
• Restores tight closing action and stops tailgate bounce over bumps.

Will this kit fit my truck and which model years are covered?

The hinges are vehicle-specific and engineered for direct replacement on many Chevy and GMC full-size pickups and select Hummer models within the 1999–2007 timeframe. Always confirm fitment against your specific year and model before purchase.

• Fits Chevy Silverado and GMC Sierra 1500, 1500 Classic, 1500 HD, 2500, 2500 HD, 3500 and their Classic variants for listed years.
• Also fits Hummer H1 (2006), H2 (2005–2006), H3 (2006) where specified.
• Not compatible with Avalanche or C/K series 1500/2500/3500 variants.

How difficult is installation and what tools or parts are needed?

Installation is straightforward for anyone comfortable handling the tailgate and basic hand tools. The tailgate must be removed to access hinge bolts; once mounted, the gate realigns and operates smoothly.

• Uses either original bolts or included replacement hardware.
• Left and right hinges are clearly marked for proper placement.
• Typical install time: about 10–15 minutes per hinge with the tailgate supported.

What materials and construction make this kit a long-lasting option?

This hinge set is built from high-strength steel and finished with protective coatings to withstand weather exposure and road salt. Compared to hollow or weakened factory parts, these units use robust components at pivot points to extend service life.

• High-strength steel body for structural durability.
• Galvanized and electrophoretic coatings for corrosion resistance.
• Pivots are solid metal for reduced wear and improved longevity.

Who is this for: Drivers who own compatible Chevy, GMC or Hummer models and want a cost-effective, OEM-style repair to stop tailgate sag, eliminate rattles, and restore a secure latch. It’s ideal for DIYers and mechanics replacing failed hinges with a part that aims to match factory fit and outlast worn original components. Verify vehicle fitment and have the tailgate supported during installation to ensure safe, accurate reattachment.