2011-2019 GMC Sierra 2500HD 3500HD Front Upper Control Arms 2-4" Lift
Specifications Part numbers, fitment codes and shipping
- Brand
- K2 Industries
- Speedzone SKU
- K2-4380-CHV-006-SUS
- Manufacturer part number
- K2-4380-CHV-006-SUS
- UPC
- FUCA-CS11-2535-RB
- Category
- Suspension
- Shipping weight
- 2.0 lb
Front Upper Control Arms — 2-4" Lift
These upper control arms accommodate 2–4" of suspension lift while maintaining steering geometry and ride quality. Built for durability and engineered to work with lifted suspensions without binding or premature wear. Designed for DIY installation with basic hand tools.
Key Features
- Lift-compatible geometry - Accounts for suspension height changes without altering alignment specs
- OEM-style construction - Mounts at factory attachment points for secure, reliable fitment
- Paired set - Both left and right arms included for balanced suspension performance
Specs
- Configuration: Pair (left and right)
- Lift Range: 2–4"
- Condition: New
What's Included
- Front upper control arms (pair)
Frequently Asked Questions
Do these arms work with coilovers or only leaf spring lifts?
These control arms are designed for the lift range specified and work with both coilover and spring-based lift systems. Your specific shock and spring choice will determine ride quality, but the arms themselves mount at factory points.
Will I need to get an alignment after installation?
Yes. Any suspension modification changes your truck's geometry. Get a full 4-wheel alignment at a suspension shop after install to ensure your truck tracks straight and tires wear evenly.
What hardware do I need to bolt these on?
The arms mount at factory attachment points. You'll reuse your existing bolts and fasteners. Refer to your vehicle's service manual for torque specs—don't overtighten.
Full details on shipping times, returns, warranty and cancellations are on our policy page.
Market conditions after 2020 have changed the landscape of automotive parts. Although we stock thousands of items across multiple warehouses and distribution channels, back-orders are unavoidable in today's market. If you need a product quickly, email, message or call us to check availability so we can explore your options.
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Answers to common questions are on our FAQ page.
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