FOX 2.5 Performance Series Rear Shock, IFP/HTO (4-6 in. Lift) for Chevy Silverado HD 2500/3500 (2011-2026) & GMC Sierra HD 2500/3500 (2011-2026)
For qualified buyers at checkout
Secure checkoutEncrypted payment
Warranty Information
FOX warranty summary coming soon.
FOX 2.5 Performance Series Rear Shock, IFP/HTO (4-6 in. Lift) for Chevy Silverado HD 2500/3500 (2011-2026) & GMC Sierra HD 2500/3500 (2011-2026)
This is a rear 2.5 in. body shock for Chevy Silverado and GMC Sierra 2500HD/3500HD trucks that have been lifted 4 to 6 inches. It uses an internal floating piston and a hydraulic top-out piston, so it handles heat and tames the end of droop travel. Pick it when a leveled or lifted HD needs a rear shock matched to the added height.
| Spec | Detail |
|---|---|
| Fitment | Chevy Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD, 2011-2026 |
| Position | Rear |
| Lift Range | 4-6 in. |
| Body Diameter | 2.5 in. |
| Travel | 10.39 in. |
| Compressed / Extended | 18.34 in. / 28.73 in. |
| Reservoir | Internal floating piston |
| Mounts | Eyelet top and bottom |
| Body Material | Aluminum |
Excludes ZR2 and AT4X models. This shock is specified for a 4 to 6 in. lift, so do not use it on a stock-height truck. Manufacturer install instructions are available. FOX install instructions: download the PDF. Not sure it fits your build? Call real humans at (920) 249-7744 with your year, trim and setup and we will confirm it.
What lift height does this shock fit?
It is specified for a 4 to 6 in. lift on the listed Silverado and Sierra 2500HD/3500HD trucks.
Does it fit ZR2 or AT4X models?
No. The fitment notes exclude both the ZR2 and AT4X.
Is this a front or rear shock?
Rear. It is a single shock with eyelet mounts at the top and bottom.
What is the warranty?
Coverage depends on the product line; see our FOX warranty page for the term that applies.
Complete your Chevrolet Silverado HD build
More parts that fit your Chevrolet Silverado HD and pair well with this one — matched and ready to install.
$359.95
$239.95
$359.95
$239.95
$239.95
More for your Chevrolet Silverado HD
Picked from the 360 parts we carry for the Chevrolet Silverado HD, matched to 2011–2026 model years. Check the years and trim in each title — or call us and we’ll confirm fit.
Specifications
FOX 2.5 Performance Series Rear Shock, IFP/HTO (4-6 in. Lift) for Chevy Silverado HD 2500/3500 (2011-2026) & GMC Sierra HD 2500/3500 (2011-2026) FAQs
What lift height does this shock fit?
It is specified for a 4 to 6 in. lift on the listed Silverado and Sierra 2500HD/3500HD trucks.
Does it fit ZR2 or AT4X models?
No. The fitment notes exclude both the ZR2 and AT4X.
Is this a front or rear shock?
Rear. It is a single shock with eyelet mounts at the top and bottom.
What is the warranty?
Coverage depends on the product line; see our FOX warranty page for the term that applies.
Multi-column
Join Our Community
For all things NVMOS, check us out on Instagram and Facebook!
Financing Available
Pay over time with Affirm or PayPal Credit at checkout, for qualified buyers.
Contact Us
Have a question? Just send us an e-mail at support@nvmos.com
