Rugged Liner C8U99 Under Rail Bed Liner | 1999-2006 GM 2500HD/3500HD 8ft Bed

Features:

• Fits 1999-2006 GM 2500HD/3500HD 8ft beds
• Also compatible with 2007 Classic models
• Thickest bed liner design in the industry
• Made from durable polyethylene material
• Resists dents, dings, and scratches
• Custom molded for a perfect truck fit
• Non-pooling floor helps protect cargo
• Includes inserts for two-tiered stacking
• Provides front rail and tailgate protection
• Skid-resistant floor reduces load shifting
• Backed by a limited lifetime warranty
• Proudly assembled in Missouri, USA

Protect Your Bed Like You Actually Use Your Truck

If you’re the kind of truck owner who actually puts your bed to work, the Rugged Liner C8U99 is built for you. Whether you’re hauling lumber, tossing in tools, or loading up for a weekend trip, this liner is your first line of defense against everyday wear. It’s molded to fit 1999-2006 GM 2500HD and 3500HD 8ft beds perfectly, including the 2007 Classic models, giving you a snug, clean look that doesn’t budge. Built from high-density polyethylene, this under rail liner adds serious toughness without sacrificing style or usability. The non-skid floor helps keep your cargo from shifting around, while the contoured shape looks sharp and clean. And let’s be honest, spray-ins are permanent, pricey, and still don’t offer the same drop-in convenience. With a lifetime warranty and assembly right here in Missouri, this liner lets your truck bed do its job without showing it.

Engineered To Handle Heavy Loads And Hard Work

The C8U99 Under Rail Bed Liner is a purpose-built solution crafted for the 1999-2006 GM 2500HD and 3500HD 8ft bed platforms, and also fits 2007 Classic models. It’s formed using rugged, high-density polyethylene for increased durability and resistance to common damage like scratches, dings, and dents. Its under rail design keeps your bed rails clean and untouched, ideal for those who want to pair the liner with tonneau covers or toolboxes. The surface is molded with a superior skid-resistant finish to minimize cargo shift during transit, and a non-pooling floor design helps keep moisture away from stored items. Integrated 2" x 4" slots allow for two-tiered stacking, offering greater versatility for hauling different load types. This liner is not just drop-in protection, it’s engineered for daily-use conditions, impact-heavy applications, and long-term reliability. For GM truck owners who demand function and form, this is a smart, well-tested upgrade that holds up under pressure.

Fits: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 GM 2500HD/3500HD 8ft Bed

Notes:

• Compatible with 1999-2006 GM 2500HD/3500HD 8ft beds
• Also fits 2007 Classic models with same bed size
• Designed specifically for under rail applications
• Not designed for trucks with factory side storage boxes
• May not be compatible with some tonneau cover clamps
• Improper installation may cause liner to come loose
• Liner surface can become slippery when wet
• Do not transport pets directly on liner surface
• Static electricity risk around flammable liquids
• Always follow grounding precautions when filling fuel containers
• Installation instructions are vehicle specific and included
• Lifetime warranty covers manufacturer defects