Belltech Nitro Drop 2 Twin-Tube Gas Shock Absorber bel8521 for Lowered Trucks and SUVs

Belltech designed the Nitro Drop 2 shock line to provide the Truck and SUV market with a unique blend of shock tuning. This new setup concentrates on the Comfort level while also increasing the overall performance of the complete suspension system. Designed with the daily driver Truck and SUV customer in mind, Belltech Engineers increased the low speed compression and massaged the rebound forces of the shock valving providing a factory style ride comfort while providing better road feel and grip. The Nitro Drop 2 line features application specific shortened bodies to match with the different lowering methods, ensuring you have the correct amount of shock travel for any of our Belltech Lowering Kits and Components. Shocks features include: Metal dust boots, Hardened Chrome 12.5mm piston rods, Triple lip NBR rod seal, Teflon guide bushing, 30m pistons w/ low friction Teflon seals, 45mm wide body for increased oil volume & OEM quality rubber bushings. Ships in 1 box Nitro Drop 2 Twin Tube Gas Charged Shock Absorber For Lowered Applications - See Application Guide for Fitment

• Designed with the daily driver Truck and SUV customer in mind, Belltech Engineers increased the low speed compression and tuned the rebound forces of the shock valving to provide factory style ride comfort with improved road feel and grip
• Low friction sealing and guide system? creates a quick reacting damper that is sensitive to the smallest of motions with little to no temperature increase during extreme damper conditions
• A unique blend of shock tuning concentrates on comfort level while increasing the overall performance of the complete suspension system
• Large 55mm body diameters and twin tube design allow for larger oil volume and better heat dissipation leading to increased shock life
• Steel dust cover adds protection for the piston rod, sealing system, and does not deteriorate from UV exposure or chemicals
• Large 30mm piston and rebound valve eliminates oil deterioration to further improve durability
• Tuned high durometer vulcanized rubber bushings reduce noise, vibration, and harshness (NVH)
• 2 Year Warranty - Unlimited Mileage

Upgrade the suspension performance of your lowered truck or SUV with the Belltech Nitro Drop 2 shock absorber, part number bel8521. Designed for daily-driven applications, this twin-tube gas-charged shock uses application-specific tuning to balance factory-style ride comfort with improved road feel, traction, and suspension control. Belltech engineers increased low-speed compression and refined rebound forces to help the vehicle respond smoothly while maintaining better grip over changing road surfaces.

The Nitro Drop 2 features a shortened shock body designed to provide appropriate travel for compatible Belltech lowering kits and components. Its low-friction sealing and guide system reacts quickly to small suspension movements while helping limit heat buildup during demanding driving conditions. A larger body and twin-tube construction increase oil volume and improve heat dissipation, supporting consistent performance and extended shock life. Protective steel dust covers help shield the piston rod and sealing components from road debris, UV exposure, and chemicals.

What's Included: One Belltech Nitro Drop 2 twin-tube gas-charged shock absorber. The assembly includes OEM-quality rubber bushings and is backed by a 2-year, unlimited-mileage warranty. Fitment should be verified against the vehicle's suspension configuration and Belltech application guide before installation.

Fitment: Applications include select 2003 Chevrolet Avalanche 1500, 2001-2003 Chevrolet Silverado 1500 HD, and 2001-2002 GMC Sierra 1500 HD models. Confirm year, model, drivetrain, suspension setup, and lowering configuration for exact compatibility.

Features:

• Daily-driver tuning: Combines increased low-speed compression and refined rebound control for comfortable ride quality with improved road feel and grip.
• Lowered-application design: Uses an application-specific shortened body to maintain suitable shock travel with compatible Belltech lowering kits and components.
• Twin-tube gas construction: Provides increased oil volume and improved heat dissipation for consistent damping and extended service life.
• Durable shock components: Includes a hardened chrome piston rod, metal dust boot, triple-lip NBR rod seal, Teflon guide bushing, large piston, low-friction Teflon seals, and high-durometer rubber bushings.

Fitments:
1999 Chevrolet Silverado 1500 Base
1999 Chevrolet Silverado 1500 LS
1999 Chevrolet Silverado 1500 LT
1999 GMC Sierra 1500 SL
1999 GMC Sierra 1500 SLE
1999 GMC Sierra 1500 SLT
2000 Cadillac Escalade Base
2000 Chevrolet Silverado 1500 Base
2000 Chevrolet Silverado 1500 LS
2000 Chevrolet Silverado 1500 LT
2000 Chevrolet Suburban 1500 Base
2000 Chevrolet Suburban 1500 LS
2000 Chevrolet Suburban 1500 LT
2000 Chevrolet Tahoe Base
2000 Chevrolet Tahoe Limited
2000 Chevrolet Tahoe LS
2000 Chevrolet Tahoe LT
2000 Chevrolet Tahoe Z71
2000 GMC Sierra 1500 SL
2000 GMC Sierra 1500 SLE
2000 GMC Sierra 1500 SLT
2000 GMC Yukon Denali
2000 GMC Yukon SLE
2000 GMC Yukon SLT
2000 GMC Yukon XL 1500 SLE
2000 GMC Yukon XL 1500 SLT
2001 Chevrolet Silverado 1500 Base
2001 Chevrolet Silverado 1500 LS
2001 Chevrolet Silverado 1500 LT
2001 Chevrolet Silverado 1500 HD LS
2001 Chevrolet Silverado 1500 HD LT
2001 Chevrolet Suburban 1500 Base
2001 Chevrolet Suburban 1500 LS
2001 Chevrolet Suburban 1500 LT
2001 Chevrolet Tahoe Base
2001 Chevrolet Tahoe LS
2001 Chevrolet Tahoe LT
2001 GMC Sierra 1500 C3
2001 GMC Sierra 1500 SL
2001 GMC Sierra 1500 SLE
2001 GMC Sierra 1500 SLT
2001 GMC Sierra 1500 HD SLE
2001 GMC Sierra 1500 HD SLT
2001 GMC Yukon Denali
2001 GMC Yukon SLE
2001 GMC Yukon SLT
2001 GMC Yukon XL 1500 Denali
2001 GMC Yukon XL 1500 SLE
2001 GMC Yukon XL 1500 SLT
2002 Cadillac Escalade Base
2002 Cadillac Escalade EXT Base
2002 Chevrolet Avalanche 1500 Base
2002 Chevrolet Avalanche 1500 North Face
2002 Chevrolet Avalanche 1500 On Road Edition
2002 Chevrolet Avalanche 1500 Z71
2002 Chevrolet Silverado 1500 Base
2002 Chevrolet Silverado 1500 LS
2002 Chevrolet Silverado 1500 LT
2002 Chevrolet Silverado 1500 WT
2002 Chevrolet Silverado 1500 HD LS
2002 Chevrolet Silverado 1500 HD LT
2002 Chevrolet Suburban 1500 LS
2002 Chevrolet Suburban 1500 LT
2002 Chevrolet Suburban 1500 Z71
2002 Chevrolet Tahoe LS
2002 Chevrolet Tahoe LT
2002 Chevrolet Tahoe Z71
2002 GMC Sierra 1500 Base
2002 GMC Sierra 1500 Denali
2002 GMC Sierra 1500 HT
2002 GMC Sierra 1500 SL
2002 GMC Sierra 1500 SLE
2002 GMC Sierra 1500 SLT
2002 GMC Sierra 1500 WT
2002 GMC Sierra 1500 HD SLE
2002 GMC Sierra 1500 HD SLT
2002 GMC Yukon Denali
2002 GMC Yukon SLE
2002 GMC Yukon SLT
2002 GMC Yukon XL 1500 Denali
2002 GMC Yukon XL 1500 SLE
2002 GMC Yukon XL 1500 SLT
2003 Cadillac Escalade Base
2003 Cadillac Escalade ESV Base
2003 Cadillac Escalade EXT Base
2003 Chevrolet Avalanche 1500 Base
2003 Chevrolet Avalanche 1500 North Face
2003 Chevrolet Avalanche 1500 On Road Edition
2003 Chevrolet Avalanche 1500 WBH
2003 Chevrolet Avalanche 1500 Z71
2003 Chevrolet Silverado 1500 Base
2003 Chevrolet Silverado 1500 LS
2003 Chevrolet Silverado 1500 LT
2003 Chevrolet Silverado 1500 SS
2003 Chevrolet Silverado 1500 WT
2003 Chevrolet Silverado 1500 HD LS
2003 Chevrolet Silverado 1500 HD LT
2003 Chevrolet Suburban 1500 LS
2003 Chevrolet Suburban 1500 LT
2003 Chevrolet Suburban 1500 Z71
2003 Chevrolet Tahoe LS
2003 Chevrolet Tahoe LT
2003 Chevrolet Tahoe Z71
2003 GMC Sierra 1500 Base
2003 GMC Sierra 1500 Denali
2003 GMC Sierra 1500 SL
2003 GMC Sierra 1500 SLE
2003 GMC Sierra 1500 SLT
2003 GMC Sierra 1500 WT
2003 GMC Sierra 1500 HD SLE
2003 GMC Sierra 1500 HD SLT
2003 GMC Yukon Denali
2003 GMC Yukon SLE
2003 GMC Yukon SLT
2003 GMC Yukon XL 1500 Denali
2003 GMC Yukon XL 1500 SLE
2003 GMC Yukon XL 1500 SLT
2004 Cadillac Escalade Base
2004 Cadillac Escalade ESV Base
2004 Cadillac Escalade EXT Base
2004 Chevrolet Avalanche 1500 Base
2004 Chevrolet Avalanche 1500 Z66
2004 Chevrolet Avalanche 1500 Z71
2004 Chevrolet Silverado 1500 Base
2004 Chevrolet Silverado 1500 Hybrid
2004 Chevrolet Silverado 1500 LS
2004 Chevrolet Silverado 1500 LT
2004 Chevrolet Silverado 1500 SS
2004 Chevrolet Silverado 1500 WT
2004 Chevrolet Silverado 1500 Z71
2004 Chevrolet Suburban 1500 LS
2004 Chevrolet Suburban 1500 LT
2004 Chevrolet Suburban 1500 Z71
2004 Chevrolet Tahoe LS
2004 Chevrolet Tahoe LT
2004 Chevrolet Tahoe Z71
2004 GMC Sierra 1500 Base
2004 GMC Sierra 1500 Denali
2004 GMC Sierra 1500 SLE
2004 GMC Sierra 1500 SLT
2004 GMC Sierra 1500 WT
2004 GMC Yukon Denali
2004 GMC Yukon SLE
2004 GMC Yukon SLT
2004 GMC Yukon XL 1500 Denali
2004 GMC Yukon XL 1500 SLE
2004 GMC Yukon XL 1500 SLT
2005 Cadillac Escalade Base
2005 Cadillac Escalade ESV Base
2005 Cadillac Escalade EXT Base
2005 Chevrolet Avalanche 1500 Base
2005 Chevrolet Avalanche 1500 LS
2005 Chevrolet Avalanche 1500 LT
2005 Chevrolet Avalanche 1500 Z66
2005 Chevrolet Avalanche 1500 Z71
2005 Chevrolet Silverado 1500 Base
2005 Chevrolet Silverado 1500 Hybrid
2005 Chevrolet Silverado 1500 LS
2005 Chevrolet Silverado 1500 LT
2005 Chevrolet Silverado 1500 SS
2005 Chevrolet Silverado 1500 WT
2005 Chevrolet Silverado 1500 Z71 Off-Road
2005 Chevrolet Silverado 1500 HD Base
2005 Chevrolet Silverado 1500 HD LS
2005 Chevrolet Silverado 1500 HD LT
2005 Chevrolet Suburban 1500 LS
2005 Chevrolet Suburban 1500 LT
2005 Chevrolet Suburban 1500 Z71
2005 Chevrolet Tahoe LS
2005 Chevrolet Tahoe LT
2005 Chevrolet Tahoe Z71
2005 GMC Sierra 1500 Base
2005 GMC Sierra 1500 Denali
2005 GMC Sierra 1500 Hybrid
2005 GMC Sierra 1500 SLE
2005 GMC Sierra 1500 SLT
2005 GMC Sierra 1500 WT
2005 GMC Sierra 1500 HD SLE
2005 GMC Sierra 1500 HD SLT
2005 GMC Yukon Denali
2005 GMC Yukon SLE
2005 GMC Yukon SLT
2005 GMC Yukon XL 1500 Denali
2005 GMC Yukon XL 1500 SLE
2005 GMC Yukon XL 1500 SLT
2006 Cadillac Escalade Base
2006 Cadillac Escalade ESV Base
2006 Cadillac Escalade EXT Base
2006 Chevrolet Avalanche 1500 LS
2006 Chevrolet Avalanche 1500 LT
2006 Chevrolet Avalanche 1500 Z66
2006 Chevrolet Avalanche 1500 Z71
2006 Chevrolet Silverado 1500 Hybrid
2006 Chevrolet Silverado 1500 LS
2006 Chevrolet Silverado 1500 LT
2006 Chevrolet Silverado 1500 SS
2006 Chevrolet Silverado 1500 WT
2006 Chevrolet Suburban 1500 Base
2006 Chevrolet Suburban 1500 LS
2006 Chevrolet Suburban 1500 LT
2006 Chevrolet Suburban 1500 LTZ
2006 Chevrolet Suburban 1500 Z71
2006 Chevrolet Tahoe Base
2006 Chevrolet Tahoe LS
2006 Chevrolet Tahoe LT
2006 Chevrolet Tahoe Z71
2006 GMC Sierra 1500 Denali
2006 GMC Sierra 1500 Hybrid
2006 GMC Sierra 1500 SL
2006 GMC Sierra 1500 SLE
2006 GMC Sierra 1500 SLT
2006 GMC Sierra 1500 WT
2006 GMC Sierra 1500 HD SLE
2006 GMC Sierra 1500 HD SLT
2006 GMC Yukon Denali
2006 GMC Yukon SL
2006 GMC Yukon SLE
2006 GMC Yukon SLT
2006 GMC Yukon XL 1500 Denali
2006 GMC Yukon XL 1500 SL
2006 GMC Yukon XL 1500 SLE
2006 GMC Yukon XL 1500 SLT
2006 Hummer H3 Base
2007 Chevrolet Silverado 1500 Classic LS
2007 Chevrolet Silverado 1500 Classic LT
2007 Chevrolet Silverado 1500 Classic SS
2007 Chevrolet Silverado 1500 Classic WT
2007 GMC Sierra 1500 Denali
2007 GMC Sierra 1500 Classic Denali
2007 GMC Sierra 1500 Classic SL
2007 GMC Sierra 1500 Classic SLE
2007 GMC Sierra 1500 Classic SLT
2007 GMC Sierra 1500 Classic WT
2007 Hummer H3 Base
2007 Hummer H3 X
2008 Hummer H3 Alpha
2008 Hummer H3 Base
2008 Hummer H3 X
2009 Hummer H3 Alpha
2009 Hummer H3 Base
2009 Hummer H3 Championship Series
2009 Hummer H3 X
2009 Hummer H3T Alpha
2009 Hummer H3T Base
2010 Hummer H3 Base
2010 Hummer H3T Base

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1