Stage 6 Allison Crate Transmission

Features:

• Built for 2007.5–2010 6.6L Duramax LMM trucks
• Ready-to-install complete crate transmission
• Ideal for street, towing, or race use
• Includes PPE cast aluminum deep pan
• Equipped with heavy-duty clutches and Kolene steels
• No torque converter included with transmission
• Recalibrated valve body for optimized performance
• Upgraded BST valve for improved shift control
• Built by PPE experts with 35+ years experience
• Designed to handle increased power and torque
• High-capacity pan improves cooling and durability
• $500 shipping surcharge applied at checkout

Built To Handle More Power Than You Ever Thought Possible

If you’ve pushed your Duramax beyond factory limits, you know the stock transmission won't last forever. The PPE Stage 6 Allison Crate Transmission is your answer to reliability and performance in one tough package. Whether you’re towing heavy loads during the week or ripping down the track on the weekend, this transmission is built to keep up without missing a beat. Backed by over 35 years of PPE engineering expertise, it comes ready to install with performance upgrades already in place. Inside, you'll find heavy-duty clutches and Kolene steels that are designed to hold serious power without slipping. A cast aluminum deep transmission pan is also included to help manage heat and extend service life. If you’re tired of transmissions that can’t keep up with your build, this one is made to take whatever you throw at it. It's the kind of upgrade that lets you drive hard and stay confident every time you hit the throttle.

Upgraded From The Inside Out For Demanding Builds

The PPE 128136204 Stage 6 Allison Crate Transmission is purpose-built for 2007.5–2010 GM Silverado and Sierra HD trucks equipped with the 6.6L Duramax LMM engine. This unit is a complete, ready-to-install transmission that features a recalibrated valve body for quicker and firmer shifts, along with an upgraded BST valve for improved line pressure and shift quality under load. It’s built using heavy-duty clutches and Kolene steel plates, chosen specifically for their superior friction properties and thermal resistance. These internal upgrades provide a major improvement in holding capacity, making this transmission ideal for high horsepower street applications and performance builds. The cast aluminum PPE deep pan helps with fluid capacity and cooling, ensuring more stable operation under extreme conditions. Please note that this transmission does not come with a torque converter, so one will need to be sourced separately. A $500 shipping surcharge applies at checkout due to the weight and handling requirements. This is a serious transmission built for serious power.

Fits: 2007.5, 2008, 2009, 2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LMM

Notes:

• Fits 2007.5–2010 GM Silverado and Sierra 2500HD/3500HD with 6.6L Duramax LMM
• Transmission is fully assembled and ready to install
• Does not include a torque converter, must be purchased separately
• Equipped with upgraded BST valve for improved pressure control
• Features recalibrated valve body for quicker, firmer shifts
• Includes PPE cast aluminum deep transmission pan for better cooling
• Built with heavy-duty clutches and Kolene steels for durability
• Suitable for high-performance street, towing, and race applications
• Backed by over 35 years of PPE engineering expertise
• $500 shipping surcharge will be applied at checkout