ROUGH COUNTRY | 2" Lowering Kit 4" Rear Lowering | 14-18 Chevy Silverado 1500 / 14-18 GMC Sierra 1500 / 19-19 Chevy Silverado 1500 Classic | 71640 / 71630

2" Lowering Kit 4" Rear Lowering

Select the configuration below. Review the fitment notes and included components for your selected part number before ordering.

Available options

• M1 — 71640
• Alum/Stamped Knuckle — 71630

Important fitment notes

ONLY fits aluminum or stamped steel arms. Requires 18-inch or larger wheels. Requires minor cutting and drilling. Requires rear axle flip.

M1 — 71640

Lower Ground Clearance While Retaining Ride Quality: Transform your fourth-generation Silverado 1500 with Rough Country’s 2/4 Lowering Kit. Lower your vehicle’s center of gravity without sacrificing the smooth factory ride you love. Achieve a clean, level stance while maintaining reliable performance on every drive. Engineered for Precision and Customization: Rough Country’s 2/4 Lowering Kit delivers more than just good looks. The kit features durable lowering knuckles and cam plates that work seamlessly with your factory control arms and suspension geometry, allowing you to realign your truck to factory specs. Customize your rear drop between 4 and 4.5 inches for a stance that matches your style. Hassle-Free Installation: This bolt-on kit is designed for straightforward installation with only minor cutting or drilling required. Expect a 4-6 hour install time, including an axle flip. The kit can be installed at home with basic tools, giving you a professional-level upgrade without the shop bill. Built to Last: Backed by Rough Country’s industry-leading limited lifetime replacement warranty, this kit is protected against structural and workmanship defects. Drive with confidence knowing your investment is covered for the long haul.

Hassle-Free Installation: Simple bolt-on design for quick and easy setup. Precision Drop for a Sleek Look: Lowers the front by 2 inches and rear by 4 inches for a perfectly level stance. Adjustable Rear Drop: Customize the rear drop between 4 inches and 4.5 inches to fit your style. Alignment Friendly: Easily realigns back to factory specifications for worry-free performance. Factory Ride Quality Retained: Enjoy the same smooth ride with improved aesthetics. Reversible Design: Return to stock height anytime without hassle.

Alum/Stamped Knuckle — 71630

Lower Ground Clearance While Retaining Ride Quality: Transform your fourth-generation Silverado 1500 with Rough Country’s 2/4 Lowering Kit. Lower your vehicle’s center of gravity without sacrificing the smooth factory ride you love. Achieve a clean, level stance while maintaining reliable performance on every drive. Engineered for Precision and Customization: Rough Country’s 2/4 Lowering Kit delivers more than just good looks. The kit features durable lowering knuckles and cam plates that work seamlessly with your factory control arms and suspension geometry, allowing you to realign your truck to factory specs. Customize your rear drop between 4 and 4.5 inches for a stance that matches your style. Hassle-Free Installation: This bolt-on kit is designed for straightforward installation with only minor cutting or drilling required. Expect a 4-6 hour install time, including an axle flip. The kit can be installed at home with basic tools, giving you a professional-level upgrade without the shop bill. Built to Last: Backed by Rough Country’s industry-leading limited lifetime replacement warranty, this kit is protected against structural and workmanship defects. Drive with confidence knowing your investment is covered for the long haul.

Hassle-Free Installation: Simple bolt-on design for quick and easy setup. Precision Drop for a Sleek Look: Lowers the front by 2 inches and rear by 4 inches for a perfectly level stance. Adjustable Rear Drop: Customize the rear drop between 4 inches and 4.5 inches to fit your style. Alignment Friendly: Easily realigns back to factory specifications for worry-free performance. Factory Ride Quality Retained: Enjoy the same smooth ride with improved aesthetics. Reversible Design: Return to stock height anytime without hassle.

Installation instructions

• 71640: Installation PDF
• 71630: Installation PDF