Kryptonite Shock Extension Kit for 2011+ Chevy/GMC HD Trucks
This product is vehicle-specific. Select your year, make, model, engine and transmission to confirm compatibility before adding it to your cart.
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Ships directly from the supplier. The final shipping cost will be shown before payment.
- Ships from Kryptonite Products
If you’ve leveled your 2011–2026 Silverado or Sierra HD, you’ve likely reduced your available droop travel without realizing it. The factory shock becomes the limiting factor, causing the suspension to top out early and creating a harsher ride over dips, uneven terrain, and everyday road imperfections.
The Kryptonite Shock Extension Kit is designed to correct that issue by spacing the upper shock mount to provide up to 1” of additional shock length. This allows your factory-length or OE-equivalent shocks to cycle through more usable travel, restoring droop that is lost when adding a leveling kit.
When paired with Kryptonite or other aftermarket upper control arms, this kit allows the suspension to fully utilize the improved geometry and travel range. The result is better ride quality, improved front-end compliance, and reduced stress on your shocks during normal driving and off-road use.
Built from billet 6061 aluminum and finished in a durable black anodizing, these extensions are designed for long-term strength and corrosion resistance. Each kit includes grade 10.9 gold zinc-plated hardware for secure installation and added durability in harsh conditions.
If you’re running a leveling kit and want your front suspension to perform the way it should, this is is a simple, effective solution.
If you’ve leveled your 2011–2026 Silverado or Sierra HD, you’ve likely reduced your available droop travel without realizing it. The factory shock becomes the limiting factor, causing the suspension to top out early and creating a harsher ride over dips, uneven terrain, and everyday road imperfections.
The Kryptonite Shock Extension Kit is designed to correct that issue by spacing the upper shock mount to provide up to 1” of additional shock length. This allows your factory-length or OE-equivalent shocks to cycle through more usable travel, restoring droop that is lost when adding a leveling kit.
When paired with Kryptonite or other aftermarket upper control arms, this kit allows the suspension to fully utilize the improved geometry and travel range. The result is better ride quality, improved front-end compliance, and reduced stress on your shocks during normal driving and off-road use.
Built from billet 6061 aluminum and finished in a durable black anodizing, these extensions are designed for long-term strength and corrosion resistance. Each kit includes grade 10.9 gold zinc-plated hardware for secure installation and added durability in harsh conditions.
If you’re running a leveling kit and want your front suspension to perform the way it should, this is is a simple, effective solution.
Kryptonite’s lifetime statement covers eligible steering/suspension components for the original purchaser; it excludes Heim-style joints, dust boots, shocks, sensor wires and bushings. Direct/authorized-dealer purchase, registration within 90 days and proof of purchase are required. Inspection and approval precede replacement; no parts-cost refund or collateral damages. Customer pays shipping both ways. Do not assume lifetime coverage for excluded or other product types.
Return and warranty information is based on what Kryptonite Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
Kryptonite Products warranty policyView complete warrantyProduct conditions
Return and warranty information is based on what Kryptonite Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
Professional installation is recommended.
- Return eligibility
- Kryptonite publishes 30 days from delivery for direct orders only; dealer purchases go through the dealer. Authorization, proof of purchase and new/unused original-packaged goods are required. Refunds incur minimum 25% restocking, potentially higher based on condition; the return form offers store credit without restocking. Shipping is not refunded and original free-shipping expense is deducted. Used/installed goods, custom orders, tools and gift cards are excluded. Contact FullSpecDiesel before returning. Based on what Kryptonite Products offers.
- Return window
- Not stated for this product; see supplier terms
- Restocking fee
- See supplier terms; no product-specific fee stated
- Return shipping
- Based on the supplier’s return policy; see terms
- Made to order
- No
- Backorder status
- Not backordered
- Cancellation
- Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
- Warranty provider
- Kryptonite Products
- Warranty duration
- Product-specific duration not stated; see supplier terms
- Compatibility
- Listed for specific vehicle configurations
- Legal use
- Street legal
- Processing estimate
- 3–10 business days supplier processing
- Shipping
- Shipping calculated at checkout
- Signature
- No signature requirement
- Supplier
- Kryptonite Products
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.