Description
Maximum Allison Transmission Pro Series DIY Kit, LLY| 2004.5 - 2005
LLY Pro Series Transmission Kit Fits 2004.5–2005 GM LLY Duramax with Allison 1000 5-Speed
Built for power, tuned for performance — the Pro Series Transmission Kit for the 2004.5–2005 LLY Duramax is engineered for trucks running aftermarket tuning, upgraded fuel systems, and heavy-duty use. Whether you're towing, racing, or daily driving with increased horsepower, this kit transforms your Allison 1000 5-speed into a transmission that’s built to hold serious torque and deliver consistent performance.
Product details
- Designed for LLY Duramax trucks with performance upgrades
- GPZ frictions and heavy-duty steels provide improved holding power
- Molded clutch pistons and reinforced return springs ensure long-lasting performance
- Includes overhaul and calibration components for a full, reliable rebuild
- Features Merchant Automotive’s Deep Pan Kit with exclusive Deep Filter Lock
- GPZ187 C1 Friction, Internal Spline x8
- GPZ192 C1 Friction, External Spline x8
- GPZ175 C2 Friction x7
Fitment / application
Maximum Allison Transmission Pro Series DIY Kit, LLY| 2004.5 - 2005
Confirm year, engine, transmission or axle configuration before ordering.
Manufacturer product reference: Specifications and fitment.
