For 99-06 Chevy Silverado/GMC Sierra 1500 2500HD Rear Tank Support Crossmember
For 99-06 Chevy Silverado/GMC Sierra 1500 2500HD Rear Tank Support Crossmember is a direct-fit replacement bracket priced at $135.55. Made from durable steel, it securely supports the fuel tank on 1999–2006 GM full-size trucks, ideal for restorations or repairs requiring OEM-level reliability.
● In stock
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Key features
- Fits 1999–2006 Chevy Silverado 1500/2500HD
- Compatible with GMC Sierra 1500 and 2500HD
- Durable steel construction for long life
- Direct OEM replacement design
- Bolt-on installation, no welding needed
- Corrosion-resistant protective finish
- Supports rear fuel tank securely
Pros
- +Exact fit for specified GM trucks
- +Strong, reliable steel build
- +Easy bolt-on replacement
- +Helps prevent fuel tank damage
- +Affordable vs custom fabrication
Cons
- −Only fits specific GM models
- −Professional install recommended
- −No hardware included
About For 99-06 Chevy Silverado/GMC Sierra 1500 2500HD Rear Tank Support Crossmember
What is For 99-06 Chevy Silverado/GMC Sierra 1500 2500HD Rear Tank Support Crossmember?
The For 99-06 Chevy Silverado/GMC Sierra 1500 2500HD Rear Tank Support Crossmember is a structural mounting bracket designed to support the rear fuel tank on GM 1500 and 2500HD pickup trucks from 1999 to 2006. This replacement part ensures safe, stable fuel tank positioning, especially important in aging trucks where original components may corrode or weaken. Sold by Lab Work Auto for $135.55, it's engineered for precise fitment without modification, making it a trusted choice for mechanics and DIYers restoring or maintaining older Silverados and Sierras.
Key features
- Precise Fitment — Designed specifically for 1999–2006 Chevy Silverado and GMC Sierra 1500/2500HD models.
- Durable Steel Construction — Built to withstand underbody stress and resist deformation over time.
- OEM Replacement — Matches factory dimensions for seamless installation.
- Rear Fuel Tank Support — Provides critical structural support to prevent tank sag or damage.
- Direct Bolt-On Design — No welding or fabrication required for most installations.
- Corrosion-Resistant Finish — Helps protect against rust in harsh driving environments.
- Professional Installation Recommended — Ensures proper alignment and long-term safety.
Who is For 99-06 Chevy Silverado/GMC Sierra 1500 2500HD Rear Tank Support Crossmember for?
This crossmember is ideal for truck owners, auto repair shops, and restoration specialists working on late-1990s to mid-2000s GM full-size pickups. It’s especially valuable when replacing a rusted or damaged factory crossmember during fuel system service. DIY mechanics with intermediate undercarriage experience can install it, though professional help is advised for safety and precision. It's a must-have for trucks undergoing frame repairs, fuel tank replacements, or full underbody refurbishments.
How does For 99-06 Chevy Silverado/GMC Sierra 1500 2500HD Rear Tank Support Crossmember compare?
Compared to universal underbody brackets or fabricated supports, this crossmember offers exact OEM-style fitment, eliminating guesswork and reducing installation time. It outperforms generic steel plates or makeshift solutions that lack proper geometry and mounting points. While some aftermarket chassis reinforcements focus on performance, this part prioritizes reliability and safety for daily drivers and work trucks. It’s a smarter long-term investment than patching damaged originals, especially in trucks exposed to road salt or heavy use.
Best use cases
- →Replacing rusted fuel tank crossmembers
- →Fuel tank removal or service
- →Frame restoration projects
- →Underbody repair after accidents
- →Preventive maintenance on older trucks
Is For 99-06 Chevy Silverado/GMC Sierra 1500 2500HD Rear Tank Support Crossmember right for you?
Buy this crossmember if you own a 1999–2006 Chevy Silverado or GMC Sierra and need to replace a worn or damaged fuel tank support. Ideal for DIYers with jack stands and basic tools, but professional installation ensures safety. Consider it over patch repairs or universal brackets for lasting reliability. Always verify your truck’s model year and trim before ordering.
How it compares: Unlike universal underbody supports or custom-welded brackets, this crossmember delivers exact OEM fit and function. It’s more reliable than patching corroded originals and safer than improvised solutions, making it the best choice for structural integrity in daily-driven or work-focused trucks.
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What vehicles fit the For 99-06 Chevy Silverado/GMC Sierra 1500 2500HD Rear Tank Support Crossmember?
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This crossmember fits 1999–2006 Chevrolet Silverado 1500 and 2500HD, and 1999–2006 GMC Sierra 1500 and 1999–2004 Sierra 2500 models. Always confirm your truck’s year and configuration before purchase to ensure compatibility.
Does the For 99-06 Chevy Silverado/GMC Sierra 1500 2500HD Rear Tank Support Crossmember come with mounting hardware?
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No, this crossmember does not include bolts or hardware. You’ll need to reuse factory fasteners or purchase compatible hardware separately. Check your vehicle’s specs to ensure you have the correct size and grade.
How difficult is it to install this rear tank support crossmember?
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Installation requires lifting the truck, removing the fuel tank, and replacing the crossmember. It’s moderately complex and best handled by someone with mechanical experience. Professional installation is recommended for safety and proper alignment.
Is the For 99-06 Chevy Silverado/GMC Sierra 1500 2500HD Rear Tank Support Crossmember made of steel?
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Yes, it is constructed from durable steel to handle underbody stress and support the fuel tank’s weight. The material resists deformation and is treated to help prevent rust and corrosion in harsh conditions.
Can I use this crossmember for a 2007 or newer Silverado or Sierra?
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No, this part is designed only for 1999–2006 models. Trucks from 2007 onward have different frame and fuel system designs. Always verify your vehicle’s year and model to ensure correct fitment.
How much does For 99-06 Chevy Silverado/GMC Sierra 1500 2500HD Rear Tank Support Crossmember cost?
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For 99-06 Chevy Silverado/GMC Sierra 1500 2500HD Rear Tank Support Crossmember is $135.55 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.
Is For 99-06 Chevy Silverado/GMC Sierra 1500 2500HD Rear Tank Support Crossmember in stock at Lab Work Auto?
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Yes, For 99-06 Chevy Silverado/GMC Sierra 1500 2500HD Rear Tank Support Crossmember is currently in stock at Lab Work Auto.
Specifications
- SKU
- F8-020233