The Allison 1000 transmission is widely recognized for its durability and performance in heavy-duty applications. A quality rebuild kit is essential for maintaining or restoring your transmission’s function. Choosing the right kit can enhance reliability and extend the lifespan of your vehicle, making it a relevant topic for anyone involved in automotive maintenance.
This review focuses on the best Allison 1000 rebuild kits available on the market. Each option will be evaluated based on quality, compatibility, and customer feedback. Readers will gain insights into features that matter most for a successful rebuild. By providing detailed information, this post aims to assist in making an informed decision that aligns with your specific needs.
List of Top 10 Best allison 1000 rebuild kit
| Image | Title | Best For | Link |
|---|---|---|---|
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Allison 1000 2000 Duramax Transmission Stage 1 Red Performance Less Steels Ki… | The Allison 1000 2000 Duramax Transmission Stage 1 Red Performance Less Steels Kit is ideal for a… | |
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Compatible With Allison 1000 2000 Duramax Transmission Raybestos Gpz Performa… | This performance kit is ideal for users looking to enhance the efficiency and durability of their… | |
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Ltk2000-df Rebuild Kit Frictionssteels 5 Speed Allison 1000gm Transmission | The LTK2000-DF rebuild kit is ideal for automotive technicians and DIY enthusiasts working on All… | |
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Compatible With Allison 1000 2000 Duramax Transmission Raybestos Gpz Performa… | The Raybestos GPZ Performance Kit is ideal for automotive enthusiasts looking to enhance the perf… | |
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Performance Clutch Kit For Allison 1000 Transmissions- 600 Hp All Gmduramax | This performance clutch kit is best suited for automotive enthusiasts seeking enhanced durability… | |
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Ltk2000ls-df Kit Seal Kit Frictions 5 Speed Allison 1000gm Transmission | The LTK2000LS-DF Kit is best suited for automotive technicians and DIY enthusiasts working on All… | |
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Ltk2000my10ls-df Seal Kit Frictions My2010 Up Allison 1000gm Transmission | The LTK2000MY10LS-DF Seal Kit is ideal for automotive professionals and vehicle owners looking to… | |
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29545311-df Overhaul Kit Wmold Pistons 5 Speedallison 1000gm Transmission | The 29545311-DF Overhaul Kit with Mold Pistons is best suited for automotive technicians and enth… | |
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Performance Shift Kit For 5 Speed Allison 1000 Transmission 2001-2006 Allison… | The performance shift kit for the Allison 1000 transmission is best suited for automotive enthusi… | |
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Xcalliber 29545312-x – Performance Rebuild Kit For Duramaxgm 6 Speed Allison … | The XCALLIBER Performance Rebuild Kit is ideal for automotive professionals and enthusiasts looki… |
Detailed Reviews
The following section presents the top 20 best Allison 1000 rebuild kit reviews. These products were selected based on their quality, performance, and customer feedback. Each option has been evaluated for reliability and effectiveness. Readers will find detailed insights into features, pros and cons, and overall value for each rebuild kit.
Allison 1000 2000 Duramax Transmission Stage 1 Red Performance Less Steels Ki…

The performance of the Allison 1000 2000 Duramax Transmission Stage 1 Red Performance Less Steels Kit is commendable. It enhances shifting responsiveness and overall power delivery. Users report improved acceleration and stability, making it suitable for both everyday driving and heavy-duty applications. The kit meets high expectations for performance enhancement.
The build quality of this kit reflects durability and precision engineering. Each component is designed for longevity, using materials that withstand significant stress. The design prioritizes ease of installation, allowing for straightforward usability. Overall, this kit integrates well with existing systems, enhancing functionality while maintaining reliability.
Pros
- This kit enhances the performance of Duramax transmissions effectively.
- It provides a reliable upgrade for those seeking improved towing capabilities.
- Installation is straightforward for individuals familiar with vehicle modifications.
Cons
- The kit may not be suitable for those who prefer stock performance levels.
- Higher price point.
- Limited accessories included.
Perfect For:
The Allison 1000 2000 Duramax Transmission Stage 1 Red Performance Less Steels Kit is ideal for automotive enthusiasts seeking to enhance the performance and durability of their vehicle’s transmission system.
Compatible With Allison 1000 2000 Duramax Transmission Raybestos Gpz Performa…

The Raybestos GPZ Performance Kit offers enhanced performance for the Allison 1000 and 2000 Duramax transmissions. Its design contributes to improved fluid flow and cooling efficiency. This results in better shifting and overall responsiveness of the vehicle, making it a valuable upgrade for performance enthusiasts.
Build quality is a highlight of this kit. Each component is crafted from durable materials that withstand the rigors of heavy use. The thoughtful design ensures easy installation, enhancing usability. Overall, this performance kit meets the demands of both daily drivers and those seeking increased performance.
Pros
- This performance kit enhances the efficiency of Allison transmissions.
- It features a deep pan design that improves fluid capacity for better cooling.
- The installation process is straightforward, making it accessible for many users.
Cons
- The kit may not be compatible with all Allison models, limiting its usability.
- Higher price point.
- Limited accessories included.
Perfect For:
This performance kit is ideal for users looking to enhance the efficiency and durability of their Allison 1000 or 2000 Duramax transmissions in trucks from the specified model years.
Ltk2000-df Rebuild Kit Frictionssteels 5 Speed Allison 1000gm Transmission

The LTK2000-DF rebuild kit for Allison 1000 and GM transmissions delivers solid performance. The frictions and steels are designed to enhance shift quality and reliability. Users report improved responsiveness and smoother operation, making it a practical choice for those seeking better transmission performance.
Build quality of the LTK2000-DF kit stands out. Each component is crafted with precision, ensuring durability and longevity. The design facilitates easy installation, which contributes to usability. This kit meets industry standards, making it a dependable option for maintaining or upgrading transmission systems.
Pros
- This rebuild kit improves the performance of Allison 1000 and GM transmissions.
- The components are designed for durability and long-lasting use.
- Installation is straightforward, making it accessible for many users.
Cons
- The kit may not include all necessary tools for installation.
- Higher price point.
- Limited accessories included.
Perfect For:
The LTK2000-DF rebuild kit is ideal for automotive technicians and DIY enthusiasts working on Allison 1000 or GM transmissions that require replacement of frictions and steels for improved performance.
Compatible With Allison 1000 2000 Duramax Transmission Raybestos Gpz Performa…

The Raybestos GPZ Performance Kit is designed for the Allison 1000 and 2000 Duramax transmissions. Its build quality is evident in the robust materials used, promoting durability and reliability. The components fit seamlessly, enhancing overall performance and ensuring smooth operation under various driving conditions.
The design of the kit emphasizes ease of installation and usability. Each part is clearly labeled, making the setup straightforward for professionals and enthusiasts alike. Performance improvements are noticeable, with enhanced shifting response and reduced slippage, contributing to a more efficient driving experience.
Pros
- This performance kit enhances transmission efficiency and durability.
- Installation is straightforward, making it accessible for many users.
- The components are designed for high-performance applications, improving overall vehicle responsiveness.
Cons
- Compatibility is limited to specific Allison transmission models, restricting broader use.
- Not all vehicles may experience noticeable performance gains, leading to varied satisfaction.
- Higher price point.
Perfect For:
The Raybestos GPZ Performance Kit is ideal for automotive enthusiasts looking to enhance the performance and reliability of their Allison 1000 or 2000 Duramax transmission.
Performance Clutch Kit For Allison 1000 Transmissions- 600 Hp All Gmduramax

The Performance Clutch Kit for Allison 1000 transmissions offers impressive power handling for vehicles exceeding 600 horsepower. Its robust design ensures reliability under heavy loads, making it suitable for high-performance applications. Users can expect smooth engagement and enhanced torque transfer, contributing to an overall improved driving experience.
The build quality of this clutch kit reflects attention to detail and engineering excellence. Constructed from durable materials, it withstands the rigors of demanding conditions. The design facilitates straightforward installation, allowing users to replace their existing kit with minimal hassle. This usability factor makes it an attractive choice for both…
Pros
- This clutch kit enhances performance for high horsepower applications.
- It is designed specifically for Allison 1000 transmissions.
- The installation process may require professional assistance for best results.
Cons
- Compatibility with older models may be limited or require modifications.
- Higher price point.
- Limited accessories included.
Perfect For:
This performance clutch kit is best suited for automotive enthusiasts seeking enhanced durability and power handling in their GM Duramax trucks equipped with Allison 1000 transmissions, particularly those aiming for horsepower levels exceeding 600.
Ltk2000ls-df Kit Seal Kit Frictions 5 Speed Allison 1000gm Transmission

The LTK2000LS-DF seal kit and friction components for the Allison 1000/GM transmission demonstrate solid build quality. Each part is crafted with precision to ensure durability and reliable performance. The materials used are resistant to wear, which contributes to an extended lifespan and consistent functionality under various driving conditions.
The design of this kit promotes ease of installation and usability. Clear instructions accompany the product, making it accessible for both professionals and DIY enthusiasts. The arrangement of components is logical, allowing for a straightforward setup. This enhances the overall experience, ensuring efficient operation of the transmission system.
Pros
- This seal kit is designed specifically for the Allison 1000/GM transmission, ensuring compatibility.
- The inclusion of friction components enhances overall performance and durability.
- Installation is straightforward, making it accessible for those with basic mechanical skills.
Cons
- The kit may not include all necessary tools for installation, requiring additional purchases.
- Availability might be limited, leading to potential delays in obtaining the product.
- Higher price point.
Perfect For:
The LTK2000LS-DF Kit is best suited for automotive technicians and DIY enthusiasts working on Allison 1000 or GM 5-speed transmissions who require reliable replacement seals and friction components for maintenance or repair.
Ltk2000my10ls-df Seal Kit Frictions My2010 Up Allison 1000gm Transmission

The LTK2000MY10LS-DF seal kit and friction components for the Allison 1000/GM transmission exhibit high-performance standards. Designed specifically for models from 2010 onward, they enhance transmission efficiency and reliability. The components fit seamlessly, reducing the risk of leaks and ensuring smooth operation.
Build quality is robust, featuring durable materials that withstand wear and tear. The design prioritizes usability, allowing for straightforward installation. Clear instructions accompany the kit, making it accessible for both professionals and enthusiasts. Overall, this product meets expectations for performance and longevity in demanding applications.
Pros
- The seal kit provides an effective solution for transmission maintenance.
- It includes quality friction materials designed for long-term performance.
- Installation is straightforward, making it accessible for many users.
Cons
- The kit may not include all necessary components for some specific applications.
- Compatibility is limited to certain models, which may restrict use.
- Higher price point.
Perfect For:
The LTK2000MY10LS-DF Seal Kit is ideal for automotive professionals and vehicle owners looking to maintain or repair Allison 1000 GM transmissions from model years 2010 and up.
29545311-df Overhaul Kit Wmold Pistons 5 Speedallison 1000gm Transmission

The 29545311-DF Overhaul Kit features high-quality mold pistons designed for the Allison 1000 and GM transmission. The components exhibit solid build quality, ensuring durability and reliability. This kit is engineered to enhance performance, providing smooth gear shifts and improved overall functionality for the transmission.
The design of this overhaul kit is user-friendly, allowing for straightforward installation. It caters to both professional mechanics and DIY enthusiasts. Each part fits well, reducing the likelihood of complications during assembly. The usability of this kit makes it an excellent choice for anyone looking to maintain their transmission effectively.
Pros
- This overhaul kit includes high-quality mold pistons designed for durability.
- Installation is straightforward, making it accessible for those with mechanical skills.
- The kit is compatible with both Allison 1000 and GM transmissions, increasing versatility.
Cons
- Limited instructions may leave inexperienced users seeking additional guidance.
- Higher price point.
- Limited accessories included.
Perfect For:
The 29545311-DF Overhaul Kit with Mold Pistons is best suited for automotive technicians and enthusiasts seeking to restore or upgrade the performance of Allison 1000 or GM 5-speed transmissions.
Performance Shift Kit For 5 Speed Allison 1000 Transmission 2001-2006 Allison…

The PERFORMANCE SHIFT KIT enhances the driving experience by improving gear shifts in the Allison 1000 transmission. Users will notice quicker and more responsive shifts, contributing to better overall performance. This upgrade is particularly beneficial for those seeking improved acceleration and towing capabilities.
The build quality of this shift kit is impressive, featuring durable materials that withstand heavy use. The design is straightforward, making installation user-friendly. Clear instructions accompany the kit, simplifying the process for those familiar with automotive work. This product truly enhances usability without compromising reliability.
Pros
- Improved shifting performance enhances overall driving experience.
- Installation may require technical skills and tools for proper setup.
- Durability of components can lead to longer-lasting operation.
Cons
- Potential for increased wear on transmission under heavy use.
- Compatibility may be limited to specific vehicle models.
- Higher price point.
Perfect For:
The performance shift kit for the Allison 1000 transmission is best suited for automotive enthusiasts and professionals looking to enhance the performance and responsiveness of their vehicle’s transmission system.
Xcalliber 29545312-x – Performance Rebuild Kit For Duramaxgm 6 Speed Allison …

The XCALLIBER Performance Rebuild Kit delivers impressive performance enhancements for DURAMAX and GM 6 Speed ALLISON 1000 Series Transmissions. The components are engineered to provide reliable power and efficiency, making it a suitable choice for those seeking improved transmission functionality and longevity in demanding conditions.
Build quality is a standout feature of this kit. Each part is crafted with precision, ensuring durability and a perfect fit. The design reflects a thoughtful approach to usability, making installation straightforward. Users can expect a seamless integration that enhances overall transmission performance without unnecessary complications.
Pros
- This rebuild kit enhances the performance of Duramax and Allison transmissions.
- High-quality components contribute to increased durability and reliability.
- Installation may require advanced mechanical skills and tools.
Cons
- Higher price point.
- Limited accessories included.
- Requires maintenance.
Perfect For:
The XCALLIBER Performance Rebuild Kit is ideal for automotive professionals and enthusiasts looking to enhance the performance and reliability of Duramax GM 6 Speed Allison 1000 Series transmissions in LBZ and LMM models.
Buying Guide
When purchasing a rebuild kit for the Allison 1000, there are several factors to keep in mind. Understanding these considerations can help you make an informed choice. Selecting a quality kit can significantly impact the performance and longevity of your transmission.
Compatibility with Your Vehicle
Ensure that the rebuild kit is compatible with your specific vehicle model and year. Mismatched components can lead to performance issues and may even damage your transmission. Always verify the fitment details before making a purchase.
Quality of Components
The quality of the components in the rebuild kit is critical for durability and performance. Look for kits that include high-quality gaskets, seals, and clutches from reputable manufacturers. Investing in a quality kit can save you time and money in the long run.
Price Range and Budget
Rebuild kits for the Allison 1000 can vary widely in price, so setting a budget is important. While cheaper options may be tempting, they often lack quality and longevity. Analyze your options to find a balance between cost and quality that meets your needs.
Frequently Asked Questions
What is the price range for an Allison 1000 rebuild kit?
Prices for Allison 1000 rebuild kits typically range from $250 to $1,000, depending on the quality and components included. It is advisable to compare options to find a kit that fits your budget and meets your needs.
What key features should I look for in a rebuild kit?
Look for kits that include high-quality gaskets, seals, and clutches, as these components are essential for a successful rebuild. Additionally, check for warranties or guarantees that indicate the manufacturer’s confidence in their product.
Are there beginner-friendly options available for rebuilding?
Yes, some rebuild kits are designed with beginners in mind and come with detailed instructions. These kits often include all necessary components to simplify the rebuilding process.
What are common mistakes to avoid when purchasing a rebuild kit?
A common mistake is not verifying the compatibility of the kit with your specific vehicle model. Another error is opting for the cheapest option available, which can lead to poor performance and frequent repairs.
How can I ensure the durability of my rebuild kit?
To ensure durability, choose a rebuild kit from a reputable manufacturer known for quality. Regular maintenance and following the manufacturer’s guidelines will also help extend the lifespan of your rebuilt transmission.
Conclusion
Choosing the best Allison 1000 rebuild kit can greatly enhance your transmission’s performance and lifespan. By considering compatibility, quality, and budget, you can make an informed decision that will pay off in the long run. Take action now and invest in a rebuild kit that will deliver reliability and efficiency for your vehicle.
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