High Performance Series Pump Kit – GMC 2500/3500 (1999–2010) – 6.6L Duramax GMC-2500-3500-4wd-1976 5" assist cylinder takes the

5" assist cylinder takes the strain off your gear and doubles as the ultimate steering stabilizer

0L Super Duty’s hydro‑boost system

Whether you're building a trail vehicle

This steel 90° auxiliary bracket is the fix

you’ve probably felt that steering strain

High Performance Series Pump Kit – GMC 2500/3500 (1999–2010) – 6.6L Duramax GMC-2500-3500-4wd-1976 5" assist cylinder takes theThis High Performance Series pump kit is built for GMC 2500 and 3500 trucks running the 6. 6L Duramax from 19992010. Its a strong, directfit upgrade that gives your steering system more flow at lower RPM and the pressure needed to turn larger tires, especially on trucks with HydroBoost brakes. PSC builds this pump with a larger ring and rotor for improved output, includes a premium highpressure hose kit, and pairs everything with our 715 performance