ATZTNUO Body Cab Mount Bushing & Bolt Kit for Silverado Sierra 1999-2004 - Polyurethane, Restores Ride Height

ATZTNUO 7-141 is a complete body cab mount bushing and bolt kit engineered to restore factory ride height, reduce body sag, and tighten cabin-to-frame fitment for compatible Silverado and Sierra trucks.

This kit replaces worn rubber body mounts and hardware with durable polyurethane bushings and reinforced fasteners to revive alignment and minimize vibration. Designed for select Chevrolet Silverado 1500 and GMC Sierra 1500 years, the ATZTNUO kit addresses common sagging and looseness that develop with age, delivering a firmer, quieter ride and improved body-to-frame connection.

How will this kit affect ride feel and noise in the cabin?

Upgrading to polyurethane bushings reduces unwanted movement between the cab and frame, which cuts down on body roll and resonance that travels into the passenger area. You’ll notice a more responsive feel through steering and reduced rattles or creaks caused by compressed, deteriorated mounts.

• Stiffer polyurethane dampens vibration more effectively than original rubber.
• Restores proper cab-to-frame spacing to reduce drivetrain clunk.
• Reinforced washers and bolts improve clamping consistency.

Which vehicles and configurations is the ATZTNUO 7-141 kit compatible with?

This kit fits many Chevrolet Silverado 1500 and GMC Sierra 1500 models from 1999 to 2004 for both 2WD and 4WD setups, and can fit some 1999–2004 2500 (non-HD) trucks. It is not recommended for 2500HD or 1500HD models and some pickup configurations where longer bolts or different mounts are required.

• Compatible: 1999–2004 Silverado/Sierra 1500 (2WD/4WD).
• May fit select 1999–2004 2500 (non-HD) variants—verify before ordering.
• Not suitable for 2500HD, 1500HD, or trucks needing longer hardware.

What components are included and what materials are used?

The kit contains upper and lower body mounts, reinforced washers, and bolts to replace the original mounting system comprehensively. All bushings are molded from high-quality polyurethane for improved tear resistance and longevity compared with stock rubber mounts.

• Upper mounts (part 68106) x8 and lower mounts (part 68107) x8.
• Reinforced washers (1163) x8 and bolts (11516868) x8 included.
• Durable polyurethane construction resists cracking, sagging, and wear.

How difficult is installation and what should I prepare?

Installation is a moderate DIY task for someone comfortable with vehicle lifts and basic hand tools; some mounts are under significant load and may require a hoist or jack support. Replace all mounts as a set where possible to ensure even cabin alignment and double-check torque specs for the new bolts.

• Prepare jack stands or a lift and proper safety equipment.
• Have hand tools, torque wrench, and penetrating oil ready.
• Support cab/frame when removing old mounts to prevent shifting.

Who is this for: The ATZTNUO 7-141 Body Cab Mount Bushing Bolt Kit is aimed at owners of compatible Chevrolet Silverado 1500 and GMC Sierra 1500 trucks (1999–2004) who are experiencing body sag, excessive vibration, or noisy cabin mounting points and want a long-lasting, performance-minded replacement. It’s a fit for DIY mechanics and professional installers who need a complete replacement set with upgraded polyurethane components and reinforced hardware to restore factory ride height and improve handling feel.