Features:
- Fits 2003-2004 6.6L Duramax LB7 4WD trucks
- Includes ATS-built LCT1000 performance transmission
- Comes with ATS Five Star torque converter
- Includes deep transmission pan for added capacity
- Features ATS Co-Pilot transmission controller
- Designed for 4WD with PTO-equipped trucks
- Improves durability for towing and performance
- Complete transmission upgrade package
- Built for reliable high-power applications
- $500 shipping surcharge applies at checkout
Get the Most Out of Your LB7 Duramax
If your 2003-2004 LB7 Duramax has been working hard for years, or you’ve added power and noticed your stock transmission struggling to keep up, the ATS Stage 2 Allison LCT1000 Crate Transmission is the upgrade you’ve been waiting for. Designed for 4WD trucks equipped with a PTO, this package is built to handle the added stress of towing, hauling, and performance driving. It starts with ATS’s fully built LCT1000 transmission, engineered to improve reliability and shift quality under heavy load. Whether you’re putting your truck to work every day or building a dependable weekend warrior, this complete transmission kit makes sure your drivetrain is up to the challenge.
A Complete Solution with Everything You Need
ATS goes the extra mile by including everything you need to strengthen your truck’s transmission system. Along with the built transmission, this package includes the ATS Five Star torque converter, designed to improve torque transfer and reduce slip. You also get the ATS deep transmission pan, adding extra fluid capacity to help manage heat during long pulls or heavy use. To bring it all together, the ATS Co-Pilot transmission controller gives you better control over shift timing and line pressure, improving drivability and performance. This package is built to deliver long-term durability and smooth power delivery in real-world conditions. Please note, a $500 shipping surcharge applies at checkout, but the value you get with this complete package makes it a smart investment for any serious LB7 owner.
Fits: 2003, 2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7 PTO 4WD
ATS 309-825-4272 Stage 2 Allison LCT1000 Crate Transmission | 2003-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7 PTO 4WD
ATS Diesel Performance
MSRP:
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MSRP:
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$6,538.95
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ATS Diesel Performance
ATS 309-825-4272 Stage 2 Allison LCT1000 Crate Transmission | 2003-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7 PTO 4WD
- SKU:
- ATS309-825-4272
- UPC:

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ATS Diesel Performance
ATS 309-835-4272 Stage 3 Allison LCT1000 Crate Transmission | 2003-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7 PTO 4WD
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$7,331.95

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ATS Diesel Performance
ATS 309-845-4272 Stage 4 Allison LCT1000 Crate Transmission | 2003-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7 PTO 4WD
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MSRP:
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$8,081.95

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ATS Diesel Performance
ATS 309-865-4272 Stage 6 Allison LCT1000 Crate Transmission | 2003-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7 PTO 4WD
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$10,611.45

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ATS Diesel Performance
ATS 309-824-4272 Stage 2 Allison LCT1000 Crate Transmission | 2003-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7 4WD
MSRP:
Was:
Now:
(Inc. Tax)
MSRP:
Was:
Now:
$6,538.95

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ATS Diesel Performance
ATS 309-855-4272 Stage 5 Allison LCT1000 Crate Transmission | 2003-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7 PTO 4WD
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Was:
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(Inc. Tax)
MSRP:
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$8,576.95
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