Description
The FOX® Performance Series 2.0 shock, part number 980-24-955, is a 10.62″ travel, smooth-body Rear shock with an external reservoir, engineered for rear-position applications at 0″-2.5″ on Silverado/Sierra HD trucks (0″-3″ on Avalanche/Suburban, 0″-1″ on Yukon XL/Hummer H2 — see fitment table) of lift on Chevrolet Avalanche 2500, Chevrolet Silverado 1500 HD, Chevrolet Silverado 2500, Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, Chevrolet Suburban 2500, GMC Sierra 1500 HD, GMC Sierra 2500, GMC Sierra 2500 HD, GMC Sierra 3500 HD, GMC Yukon XL 2500, Hummer H2 trucks covering the model years detailed below.
IMPORTANT: This part number covers 0″-2.5″ on Silverado/Sierra HD trucks (0″-3″ on Avalanche/Suburban, 0″-1″ on Yukon XL/Hummer H2 — see fitment table) of lift only. FOX® offers this same rear-position application at other lift heights under separate part numbers: 980-24-957 (7″-10″ of lift); 985-24-192 (1.5″-3.5″ of lift). Double-check the lift height above against your build before ordering — these are not interchangeable. This listing is for the rear shock only and is sold individually; it does not include the matching front unit.
This is FOX®’s aluminum-bodied Performance Series 2.0 Reservoir smooth body shock, built to deliver race-proven damping performance in a bolt-on, hassle-free package. The impact-extruded, clear-anodized 6061-T6 aluminum shock body sheds heat faster than a conventional steel-body shock, helping stabilize damping performance on long, rough runs.
The external reservoir increases oil and nitrogen capacity over a standard monotube design, improving heat dissipation and maintaining consistent damping under repeated hard use. The black-anodized reservoir clamp and mounting hardware are CNC-machined from 6061-T6 billet aluminum.
The 10.62″ shaft is 5/8″ hard chrome-plated, heat-treated alloy steel, paired with FOX®’s race-developed high-flow piston and application-specific valving for predictable ride quality across rough terrain. A redundant sealing pack (main seal, wiper seal, scraper seal) protects the internals. Every FOX® Performance Series 2.0 shock is backed by FOX®’s Limited Lifetime Warranty.
- Fitment: Rear position, 0″-2.5″ on Silverado/Sierra HD trucks (0″-3″ on Avalanche/Suburban, 0″-1″ on Yukon XL/Hummer H2 — see fitment table) of lift — Chevrolet Silverado 2500 HD — 2001-2019 — 0″-2.5″ lift; GMC Sierra 2500 HD — 2001-2019 — 0″-2.5″ lift; Chevrolet Silverado 3500 HD — 2001-2006 (Silverado 3500) / 2007-2019 (Silverado 3500 HD) — 0″-2.5″ lift; GMC Sierra 3500 HD — 2001-2006 (Sierra 3500) / 2007-2019 (Sierra 3500 HD) — 0″-2.5″ lift; Chevrolet Silverado 1500 HD — 2001-2003, 2005-2007 (2007 Classic) — 0″-2.5″ lift; GMC Sierra 1500 HD — 2001-2003, 2005-2007 (2007 Classic) — 0″-2.5″ lift; Chevrolet Silverado 2500 — 1999-2004 — 0″-2.5″ lift; GMC Sierra 2500 — 1999-2004 — 0″-2.5″ lift; Chevrolet Avalanche 2500 — 2002-2006 — 0″-3″ lift; Chevrolet Suburban 2500 — 2000-2013 — 0″-3″ lift; GMC Yukon XL 2500 — 2000-2013 — 0″-1″ lift; Hummer H2 — 2003-2009 — 0″-1″ lift
- Impact-extruded, clear-anodized 6061-T6 aluminum shock body dissipates heat faster than steel
- External reservoir increases oil and nitrogen capacity for consistent damping
- Race-developed high-flow piston with application-specific valving
- 5/8″ hard chrome-plated, heat-treated alloy steel shaft
- Redundant sealing pack: main seal, wiper seal, scraper seal
- Includes billet aluminum reservoir clamp
- Backed by FOX®’s Limited Lifetime Warranty
- Sold individually
| Brand | Fox Racing Shox |
| Part Number | 980-24-955 |
| Series | Performance Series 2.0 |
| Position | Rear |
| Travel | 10.62″ |
| Body | 2.0″ impact-extruded 6061-T6 aluminum, clear-anodized |
| Components | Black-anodized, CNC-machined 6061-T6 billet aluminum |
| Shaft | 5/8″ hard chrome-plated, heat-treated alloy steel |
| Piston | Race-developed high-flow piston design |
| Valving | Application-specific valving |
| Seals | Redundant sealing pack: main seal, wiper seal, scraper seal |
| Extended Length | 26.52″ |
| Compressed Length | 15.90″ |
| Top Mount | Eyelet |
| Bottom Mount | Eyelet |
| Warranty | FOX® Limited Lifetime Warranty |
| What’s Included | (1) FOX® Performance Series 2.0 Rear Shock, part number 980-24-955, with billet aluminum reservoir clamp |
Fitment covers rear-position applications at 0″-2.5″ on Silverado/Sierra HD trucks (0″-3″ on Avalanche/Suburban, 0″-1″ on Yukon XL/Hummer H2 — see fitment table) of lift on the model years and trims listed above. This is the rear shock only, sold individually — see the IMPORTANT note above for the alternate lift-height part numbers on this platform.