2007-2013 SILVERADO/SIERRA 1500 2WD/4WD 3″/5″ LOWERING KIT (SPINDLES/COILS, EXT/CREW CAB)

MaxTrac KS331335-8 – Complete 3”/5” Lowering Kit For 2007–2013 Silverado/Sierra 1500 (2WD/4WD, Extra Cab & Crew Cab)

The KS331335-8 is a complete 3” front / 5” rear lowering kit engineered to deliver a bold, aggressive stance without sacrificing ride comfort. Designed specifically for 2007–2013 Silverado/Sierra 1500 2WD and 4WD Extra Cab and Crew Cab models, this kit improves both the appearance and handling of your truck while maintaining a smooth, factory-like ride.

Built from premium materials and precision-engineered, this system includes all the necessary components for a comprehensive, bolt-on suspension drop—with some minor cutting required for rear installation.

Front Components

The front setup features our Signature Series 2” drop spindles paired with 1” linear lowering coil springs:

• Drop Spindles Part# 101320: Cast from high-strength ductile iron and finished with a protective E-coat, these spindles relocate the hub assembly upward by a true 2 inches while maintaining correct suspension geometry, alignment, and scrub radius.
• Lowering Coils Part# 251310-8: Featuring a slightly firmer spring rate than stock, these coils improve handling without compromising ride quality and come powder-coated for long-lasting durability.

Rear Components

The rear of the truck is lowered using Part# 201360 a flip kit and fabricated lift hangers:

• Maintains use of the factory leaf springs to preserve ride comfort.
• Includes firmer-valved MaxTrac shocks to enhance stability and cornering control.
• Adjustable rear hangers with multiple mounting positions allow for fine-tuning of rear ride height.

⚠️ Installation Note:
Rear installation requires more extensive modification. The following components will need to be cut or removed:

• Factory rear hanger mounting rivets
• Brake line brackets beneath the spring perches
• Factory bump stop mounts on the frame

This kit delivers a clean, aggressive drop with proven ride quality and improved handling—ideal for truck owners looking to lower their stance with confidence and reliability.

Features

• 2” Signature Series drop spindles (E-coated ductile iron for strength and durability)
• 1” Linear lowering coil springs (powder-coated, slightly firmer than stock)
• 5” Rear flip kit with adjustable fabricated hangers
• Firmer-valved MaxTrac rear shocks for enhanced ride control
• Fully powder-coated, high-quality components
• Designed to retain factory alignment specs
• Bolt-on installation with minor required cutting (rear hangers, brackets, bump stops)

Benefits

• Gives your truck a bold, leveled stance
• Eliminates factory rake for a cleaner look
• Improves handling without harshness
• Maintains a comfortable, factory-like ride
• Adjustable rear ride height for fine-tuning stance
• Durable finish and strong materials for long-term reliability
• Compatible with most aftermarket wheel/tire combos (some fender trimming may be required)

Additional Notes

• Optional C-notch kit available: Part #301360C
• Trucks with MagneRide suspension need adapter: Part #9917M