Product Overview
RTZ Chevrolet Silverado GMC Sierra 1500 V6 4/6 Lowering Kit – 4" Front Drop Spindles & Coil Springs + 6" Rear Flip Kit + DoestchTech Premium Nitro Shocks (1999–2006 2WD V6)
The RTZ 4/6 lowering kit for the 1999–2006 Chevrolet Silverado and GMC Sierra 1500 2WD V6 is the V6-specific version of the proven 4/6 slam package built to drop your truck 4 inches up front and 6 inches at the rear while maintaining the sport handling and ride quality you expect from a properly engineered lowering kit. This complete bundle includes ductile iron 2-inch drop spindles, load-tested 2-inch front lowering coil springs, a rear axle flip kit, a frame notch kit, and a full set of DoestchTech Premium Nitrogen Gas Charged Slammer Shocks. If you're looking to buy a Silverado Sierra V6 4/6 lowering kit with shocks online, this is the right kit for your engine application.
The front system combines 2-inch ductile iron spindles with 2-inch load-tested coil springs for the full 4-inch front drop a spindle-and-spring pairing that keeps front suspension geometry correct and delivers a smooth, planted ride. At the rear, the axle flip kit repositions the axle above the leaf springs for the full 6 inch drop, with a frame notch kit included to handle the clearance requirements of running this configuration. DoestchTech Premium nitro slammer shocks round out the package with the damping performance a slammed Silverado needs.
What's Included:
- Pair of 2-inch ductile iron drop spindles front
- Front lowering 2-inch coil springs load tested
- Rear axle flip kit 6-inch rear drop
- Frame notch kit required for full drop clearance
- Full set of DoestchTech Premium Lowered Nitrogen Gas Charged Slammer Shocks
- Designed in the USA; rolled steel, welded, CNC lasered, ductile iron formed, chromoly shaft precision machined, certain parts robotic welded
- Powder-coated to prevent corrosion
- Must run 17-inch or larger rims
- Primarily bolt-on installation with required frame notching
- Limited Lifetime Warranty
- Decal included
Fitment: Compatible with 1999–2006 Chevrolet GMC Silverado Sierra 1500 Pickup 2WD V6. Please check our other listings for different drop heights and V8 options.
The V6 4/6 kit and the V8 4/6 kit share the same drop configuration but are built for different engine applications. Using the correct kit for your engine ensures proper fitment and component compatibility throughout the front suspension system. If you want to go lower than 4/6, the V6 5/7 kit is available in our other listings. Frame notching is required, 17-inch or larger wheels are mandatory, and professional installation by a qualified technician with proper equipment is strongly recommended. Please inspect all parts before beginning installation.
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Browse our full range of Chevrolet GMC Silverado Sierra Lowering Kits to compare V6 and V8 configurations and different drop heights. For more on how lowering kits affect ride quality and handling, read our guide on the benefits, risks, and the right lowering kit to buy.
Order the RTZ Silverado Sierra V6 4/6 lowering kit today and get your V6 truck slammed the right way.
Frequently Asked Questions
- Why is there a separate kit for V6 and V8 Silverado models?
The V6 and V8 Silverado and Sierra 1500 have different front suspension configurations, which means the drop spindles and coil springs need to be spec'd specifically for each engine. Using the correct engine-specific kit ensures proper fit and safe installation. - How does this V6 4/6 kit differ from the V6 5/7 kit?
This kit drops the truck 4 inches front and 6 inches rear using 2-inch coil springs up front. The V6 5/7 kit goes one inch lower at both ends using 3-inch coil springs and adds a pair of shackles at the rear for the extra drop height. - Are frame modifications required for this kit?
Yes, frame notching is required for rear clearance when running a 6-inch rear drop. A frame notch kit is included. You must also run 17-inch or larger wheels due to the spindle-based front drop system.
