Installation Time
(approx) 3 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
Installation Guides
No guide available for this part yet.
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QA1 Single Adjustable Lowering Kit; 4 to 6-Inch (07-18 2WD Sierra 1500)Find parts that fit my vehicle
Item S550600
Our Price
$2,048.95 kit
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Product Information
Features, Description, Q&A, Specs & Installation
Features & Specs
- All-In-One Solution For Suspension Upgrade
- Includes Front Pro Coil Coil-Overs And Rear Drop Kit
- Achieves Perfect Lowered Stance With Maximum Adjustability
- Front Coil-Overs Offer 1 To 3 Inch Drop With Stock Spindles Or 3 To 5 Inch With Optional Drop Spindles
- Rear Drop Range Of 4 To 6 Inches With Half-Inch Increment Adjustments
- Heavy Duty Shock Design Supports Truck Weight And Payload
- Polyurethane Bushings And 1 Inch Chromoly T-Bar For Durability
- Single Adjustable Shocks With Dial For Ride Quality Adjustments
- Rear Shackle And Hanger Kits Made From Heavy-Gauge Steel With Powder-Coated Finish
- Fully Bolt-In Kit Enables Easy Installation
- Lifetime Warranty Available With Registration
- Compatible With OEM Or Aftermarket Drop Spindles
- Does Not Fit 1500HD Or 1500 Classic Models
- Offset Upper Control Arm Bushings May Be Required For Drops Over 2.5 Inches
- Fits 07-18 2WD Sierra And Silverado 1500, Excludes 1500HD And Classic Models
| Brand | QA1 |
| Lowering Kit Includes Shocks | Shocks Included |
| Lowering Kit Estimated Drop | 6.0F / 6.0R |
Description
Premium Lowering System. The QA1 Single Adjustable Lowering Kit; 4 to 6-Inch is designed to enhance the suspension of trucks by providing an adjustable lowered stance while improving ride quality and handling. It combines front coil-overs with a rear drop kit to allow precise height adjustments, catering to both style and performance needs for daily driving and spirited road use.
Construction and Appearance. This kit features heavy-duty components including polyurethane bushings and a 1-inch chromoly T-bar for strength and durability. The rear shackles and hanger kits are built from heavy-gauge steel with a powder-coated finish, ensuring robust performance and corrosion resistance over long-term use.
Installation. The lowering kit is designed for a hassle-free, fully bolt-in installation. Its thoughtful design simplifies the upgrade process, making it accessible to enthusiasts with moderate mechanical experience.
Warranty. The product includes a best-in-class lifetime warranty upon registration, providing long-term peace of mind.
Application. This kit fits 07-18 2WD Sierra and Silverado 1500 trucks but is not compatible with 1500HD or 1500 Classic models. Offset upper control arm bushings may be necessary for vehicles lowered more than 2.5 inches to maintain proper alignment.
QA1 LK01-GMT03
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (2) Lowering Springs
- Hardware
4.7
Reviews of QA1 Suspension Products (47)
Questions & Answers
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Will It Fit My Sierra 1500
- 4.3L V6 - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
- 4.8L V8 - 07, 08, 09, 10, 11, 12, 13
- 5.3L V8 - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
- 6.0L V8 - 07, 08, 09, 10, 11, 12, 13
- 6.2L V8 - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
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