Direct: (503) 987-4002
Main: (503) 987-4000




This premium shock spacer kit is designed to fit a range of vehicles including Chevrolet Silverado 2500 HD and 3500, GMC Sierra 2500 HD and 3500 from 2011-2026
Shock spacer kit should be installed only on the OE Shocks or OE equivalent. Installation of shock spacers on a plus length shock could result in catastrophic parts failure. Reference shock extension instructions for more details.
Intended to be installed in conjunction with aftermarket control arms.
Does not fit the AT4X and ZR2 model trucks with DSSV shocks.
Maintains factory ride quality when paired with proper components
Premium durable black powder coated finish
Corrosion resistant
A Premium Spacer Kit
The Axiom Supply Shock Extension Kit provides a safe, reliable, and straightforward solution for extending the length and drop our performance the factory front shocks on your 2011-2026 GM HD truck by up to 2 inches. Precisely engineered and machined for superior strength, these spacers offer a durable upgrade to your factory components, enabling you to level your truck without sacrificing ride quality.
For optimal performance, pair the kit with a premium aftermarket upper control arm kit and compatible shocks or shock extensions. Designed for long-lasting durability, simplified installation, and a factory-like driving experience, this system delivers exceptional results from your leveling setup.
(1) Shock Extension kit
Our suspension and steering components are warrantied for life to the original purchaser against any manufacturer defects, premature wear, or breakage.
Push it to the limit—we don’t care.
If the part lets you down, we will make it up to you!
We ship nationwide and internationally. Most in-stock items leave our shop within 1–3 business days. Made-to-order and oversized parts may require additional lead time; any special timing will be noted on the product page.
If an order is placed outside of our normal business hours (Monday–Friday), we will process it as soon as possible once our team is back in the shop during regular operating hours. Weekend orders will be handled the next business day.
We want you stoked on your gear. Eligible items may be returned within 30 days of delivery for a refund or exchange.
Many products include a manufacturer warranty. We’re happy to help facilitate claims—reach out with your order number, photos, and a description of the issue.
Questions about shipping or returns? Get in touch—our team is here to help you get trail-ready.
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