ATZTNUO cab mount bushing bolt kit for Silverado Sierra 1999-2004 — polyurethane mounts, full 8‑position hardware

ATZTNUO 7-141 body cab mount bushing bolt kit replaces worn mounts to restore factory cab height, reduce sag, and tighten body-to-frame connection on compatible Silverado and Sierra trucks.

If your Silverado or Sierra (selected 1999–2004 1500 and some 2500 non-HD models) shows cab sag, excessive body movement, or increased vibration, this ATZTNUO kit supplies upgraded polyurethane mounts, reinforced washers, and bolts to renew the body-to-frame interface. Crafted to outlast original rubber mounts, the kit focuses on durability and improved handling without altering suspension geometry when used on the vehicles it fits.

What parts are included and how many will I get?

The kit is complete for a full cab mount replacement on the specified models and includes both upper and lower mounts plus hardware. All components are provided in matched quantities so you can swap each factory mount without searching for extra pieces.

• Upper mounts (part 68106) x8 — factory-position replacements
• Lower mounts (part 68107) x8 — stamped to support frame seating
• Reinforced washers (1163) x8 — distribute load and prevent pull-through
• Bolts (11516868) x8 — plated fasteners sized for direct fit

How does polyurethane construction affect ride and durability?

Polyurethane resists tearing, compression set, and oil or road-chemical degradation better than conventional rubber. That means the mounts retain shape and support longer, leading to reduced body roll, less cabin vibration, and a firmer, more responsive feel while driving.

• Improves handling by reducing body movement under load
• Lower long-term maintenance versus rubber—less cracking and sag
• Better noise, vibration, and harshness (NVH) control for a quieter cabin

Will this kit fit my truck and are there any exceptions?

This ATZTNUO kit is intended for 1999–2004 Chevy Silverado 1500 and GMC Sierra 1500 (2WD and 4WD) and some 1999–2004 2500 non-HD pickups. It is not recommended for 2500HD, 1500HD, or other variants that require longer bolts or different mount profiles—verify year, model, and bed/suspension configuration before ordering.

• Compatible: 1999–2004 Silverado/Sierra 1500 (2WD/4WD)
• Sometimes compatible: 1999–2004 2500 (non-HD) — check fitment specifics
• Not recommended: 2500HD, 1500HD, or trucks needing extended bolts

How difficult is installation and what should I prepare?

Replacing cab mount bushings is a moderate DIY job for those with basic mechanical skills and proper safety equipment. You’ll need a jack and stands, torque tools, penetrating lubricant, and possibly a lift or two-person help to safely support the cab during removal and reinstallation of mounts.

• Required tools: jack, stands, wrenches, torque wrench, penetrating oil
• Time estimate: a few hours for an experienced DIYer, longer if rusted hardware
• Safety tip: always support the cab securely before removing mounts

Who is this for: The ATZTNUO 7-141 kit is aimed at Silverado and Sierra owners who need to replace aged or deteriorated cab mounts to restore factory ride height, reduce unwanted cabin movement, and improve handling. It suits mechanics, restoration projects, and owners looking for a durable upgrade over OEM rubber mounts—provided the vehicle matches the listed fitment. For fitment questions or warranty support, ATZTNUO offers customer service and a straightforward return policy; contact them with photos or video for the fastest assistance.