The best 4/6 drop Silverado kit is the set that lowers the front about 4 inches and the rear about 6 inches while maintaining ride quality and install practicality. This guide explains five leading kits, who they’re best for, and what trade-offs to expect. Ideal buyers include DIY enthusiasts aiming for a aggressive stance, daily drivers seeking improved aesthetics without sacrificing safety, and those who want a bolt-on setup with minimal fabrication. Below, compare each kit, then use the Buying Guide to refine your choice.
| Product | Best For | Key Benefit |
|---|---|---|
| IHC Suspension IHC-GM0713CK-46CC | Daily drivers with factory cast steel arms | Delrin bushings and strut spacers for balanced ride |
| RTZ 99-06 Lowering Kit | Budget-conscious builders | Complete front and rear drop with Doestch shocks |
| IHC Suspension IHC-GM9906CK-46 | Classic 2WD GM trucks | Bolt-on C-Notch, 4″/6″ drop |
| maXpeedingrods 6” Rear Axle Flip | Balanced stance and rear compression control | Durable carbon steel with powder coating |
| McGaughys 5/7 Lowering Kit | W/o Air Ride 2007–2013 Silverado/Sierra | Adjustable front lobs for 3/5, 4/6, or 5/7 |
IHC Suspension IHC-GM0713CK-46CC 4/6 Kit
Best for trucks with factory cast steel control arms, this kit lowers the front about 4 inches and the rear about 6 inches. Front components include upper and lower drop control arms, Delrin bushings, ball joints, 1-inch rubber isolators, shorter sway bar links, and strut spacers. Suitable for daily drivers wanting a noticeable stance without sacrificing control. A potential limitation is the need for compatible factory arms; verify fitment before purchase.
RTZ 99-06 Lowering Kit 4″/6″ (Front Spindles + Rear Kit)
Best for older Silverado/Sierra models, this kit provides a 4-inch front drop via spindles and coil springs plus a 6-inch rear flip. It includes Doestch Tech shocks for a controlled ride. It’s better for builders who want a straightforward bolt-on experience with a rear flip to achieve the 6-inch drop. Caution: frame clearance and notching may be required for some trucks, which can add install complexity.
IHC Suspension IHC-GM9906CK-46 4/6 Kit
Best for 1999–2006 GM 1500 2WD trucks, including 2007 Classic variants, this bolt-on C-Notch kit delivers about a 4-inch front and 6-inch rear drop. Front components include 5-inch drop control arms with rubber isolators. It suits 2WD builds aiming for a dramatic stance while preserving basic ride quality. Limitation: 4WD applications are not listed as supported, so verify drivetrain compatibility before ordering.
maXpeedingrods 6” Rear Axle Flip Kit
Best for rear-focused balance, this 6″ rear drop axle flip lowers the back while maintaining a stable ride. Constructed from premium carbon steel with a durable powder coating to resist rust. It’s better for trucks where rear aesthetics are a priority and the front has already been addressed. Caution: proper axle alignment and leaf spring interaction should be checked to avoid binding.
WnP 4/6 Drop Kit for 2007–13 Silverado/Sierra 1500
Best for 2007–2013 Silverado/Sierra 1500 2WD V8 models, this kit includes 2″ front drop spindles, 2″ front coil springs, and a 6″ rear flip kit with direct bolt-on installation. It’s a solid option for DIY installers seeking a complete, no-wabrication solution. Limitation: compatibility with other drivetrains or body configurations may require additional components.
Buying Guide: Key Considerations For 4/6 Silverado Drops
- Compatibility: Confirm model year, drivetrain (2WD/4WD), and factory suspension components to ensure fitment.
- Drop Balance: A 4″/6″ drop provides aggressive styling but may affect ride height, clearance, and tire/wheel choices.
- Installation: Bolt-on kits are easier for DIY installs; some kits require frame notching or component alignment checks.
- Front vs Rear Components: Some kits focus on refined front arms and bushings, others emphasize rear axle flips or C-notches for overall drop.
- Material and Finish: Look for steel components with corrosion-resistant coatings to extend life in road salt or damp climates.
- Ride Quality: Delrin bushings, upgraded shocks, and properly matched springs help preserve a comfortable daily ride.
Choosing The Right Kit For Your Truck
- Best for daily driving with factory arms: IHC GM0713CK-46CC combines compatibility with a balanced ride.
- Best for classic GM trucks: IHC GM9906CK-46 offers a straightforward bolt-on approach with a C-Notch.
- Better for rear emphasis: maXpeedingrods rear flip kit improves stance without overburdening front geometry.
- Choose this if you want a complete front/rear package with included shocks: RTZ options provide a full kit and notable components.
- Avoid this if you cannot confirm frame clearance or wheel/tender clearance for your wheel choice and tire size.
Frequently Asked Questions
- What is a 4/6 drop kit? A kit that lowers the front about 4 inches and the rear about 6 inches for a lowered stance.
- Do these kits require welding? Most listed are bolt-on; some may require frame notching or alignment checks.
- Will a 4/6 drop affect ride quality? It can; choose kits with upgraded bushings and shocks to maintain ride comfort.
- Can I install a 4/6 kit myself? Yes, many are designed for DIY installation, but verify tool needs and torque specs.
- Are these kits compatible with 2WD and 4WD? Check each kit’s listed compatibility, as some are 2WD-only.
- What maintenance is needed after lowering? Inspect steering components, alignment, and tire wear regularly.