The SunCoast Allison CAT1 500HP Rebuild Kit with Converter (GMAX-CAT1-LB7LLY-KIT) is a comprehensive transmission upgrade package designed for 2001–2005 Duramax LB7 and LLY diesel trucks. Engineered to handle up to 500 horsepower, this kit is ideal for enthusiasts looking to significantly improve the strength, reliability, and performance of their Allison 1000 transmission. It includes high-quality clutches, steels, gaskets, seals, and a precision-built torque converter specifically tuned to enhance torque multiplication and efficiency. Whether you’re towing heavy loads, racing, or simply demanding more from your truck, the SunCoast CAT1 kit provides the durability and confidence needed to push your Duramax to the next level without sacrificing drivability.
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SUNCOAST ALLISON CAT1 500HP REBUILD KIT WITH CONVERTER (GMAX-CAT1-LB7LLY-KIT) FOR 2001-2005 DURAMAX LB7 / LLY
$4,509.75
The SunCoast Allison CAT1 500HP Rebuild Kit with Converter (GMAX-CAT1-LB7LLY-KIT) is a heavy-duty transmission upgrade for 2001–2005 Duramax LB7 and LLY trucks. Designed to support up to 500 horsepower, it includes premium clutches, steels, gaskets, seals, and a high-performance torque converter to boost strength, reliability, and efficiency. Ideal for towing, racing, or high-demand use, the kit enhances durability and drivability for Allison 1000 transmissions.
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| Weight | 48 lbs |
|---|---|
| Dimensions | 19 × 16 × 13 in |
| Brand |
