Specializing in the remanufacturing of automatic transmissions and the production and supply of parts
We focus exclusively on automatic transmissions, offering comprehensive services to rebuild, remanufacture, and supply high-quality transmission components for various vehicle makes and models
Whether you're a car owner 🚙 or a workshop owner 🔧, we provide everything you need to resolve your issue quickly and without overpaying
Transmission by Model
Transmission model
Why Choose Us?
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We offer the best prices
Direct sales with no intermediaries or resellers
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Transmission tested on a dynamometer
We test all transmissions before shipping
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We program TCM before shipping
we use your vehicle’s VIN before shipping
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Transmission liquid is included in the cost
You don't need to pay for the fluid
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Fast shipping!
Fast shipping to the lower 48 states!
CNC Machining and Parts Manufacturing
Our high-precision equipment allows us to manufacture transmission parts and correct factory defects. This enables us to offer competitive pricing without compromising on quality
Transmission tested on a dynamometer
All our transmissions are tested on a dynamometer before being shipped to you. We simulate every possible operating condition to ensure the utmost reliability and performance of our products
Direct Manufacturing & Pricing
We are not just a company that sells transmissions; we are the manufacturers. You can purchase our products directly from us, without intermediaries or extra costs. Additionally, we produce many parts in-house, allowing us to offer the most competitive prices
Transmission Rebuilding Process
Our transmissions are fully remanufactured. The process includes defect detection, with all components restored to required specifications. Worn parts are replaced, including friction components, steel discs, bushings, seals, and gaskets. Some parts are machined using CNC equipment to address factory defects. The torque converter undergoes a complete rebuilding cycle. The valve body and TCM are tested and fully remanufactured or replaced with new ones. The finished transmission then undergoes a dynamometer test and is only made available for sale afterward
Ready-To-Drive
We program the transmission to your car’s VIN (only if required). Our transmissions come fully equipped with everything needed for the replacement, including oil, gaskets, and an installation guide (depending on the model). You can install it at an auto repair shop and drive away. There's no need to waste time searching for a reliable transmission at a fixed price or buying from a junkyard
Warranty
We offer a 2-year warranty on our transmissions with no mileage limitations. If a warranty issue arises, we will replace the transmission with a new one. Our reputation is very important to us, and we are committed to providing full support to ensure complete customer satisfaction




Five Steps to Success with Quantum Gear
1. Choose your transmission
2. Add to cart and checkout
3. Get and replace the transmission
4. Return the core and get core charge
5. Drive and enjoy every moment
Find the right transmission for your vehicle using our 'Search by Model' tool, or send us a purchase request. We’ll assist you in selecting the correct transmission for your needs
After you place your order, we will contact you to confirm all the details and calculate the shipping cost
After receiving the transmission, please review the installation guide. We’ve provided everything necessary for the replacement
Place your core back in the box and contact us to arrange the return. Once we receive it, we will issue your core charge refund
Our high-quality transmissions ensure trouble-free operation, allowing you to focus on enjoying the journey or delivering exceptional service to your customers





Fast Shipping - Quality Service - No Extra Costs
#QuantumGear
Parts from top brands


Rebuilt Transmissions for GMC, Chevrolet, and Cadillac – Direct Sales, No Middlemen
At Quantum Gear, we specialize in high-quality rebuilt 6L80/6L80e transmissions, specifically designed for popular vehicles such as GMC, Chevrolet, and Cadillac. Our expert team ensures that every transmission is professionally remanufactured to meet or exceed OEM standards, guaranteeing long-lasting performance and reliability.
Suitable Vehicles:
Our rebuilt transmissions are available for the following vehicles:
GMC:
- 2010-2019 GMC Yukon XL 5.3L 2WD/4WD
- 2010-2019 GMC Yukon 5.3L 2WD/4WD
- 2010-2019 GMC Sierra 1500 5.3L, 4.3L 2WD/4WD
Chevrolet:
- 2010-2019 Chevy Silverado 1500 5.3L, 4.3L, 6.2L 2WD/4WD
- 2010-2019 Chevy Tahoe 5.3L 2WD/4WD
- 2010-2019 Chevy Suburban 5.3L 2WD/4WD
- 2011-2013 Chevy Avalanche 5.3L 2WD/4WD
Cadillac:
- 2011-2015 Cadillac Escalade 6.2L 2WD/4WD
- 2011-2015 Cadillac Escalade ESV 6.2L 2WD/4WD
Why Choose Quantum Gear?
- Customized Transmissions: Every transmission is tailored to your vehicle's VIN, ensuring compatibility and peak performance.
- Latest Software Updates: We install the latest software for optimal function and efficiency.
- Unbeatable Pricing: We cut out the middlemen, offering direct-to-customer pricing without compromising on quality.
- Warranty & Support: Our transmissions come with comprehensive warranty coverage, and in the rare event of a warranty claim, we ship a replacement transmission promptly.
Fast Nationwide Shipping
No matter where you are in the U.S., Quantum Gear delivers rebuilt transmissions quickly and securely to your location.
Related Transmission Services:
- Transmission programming by VIN
- Rebuilt transmission for GMC Yukon
- 6L80 transmission for Chevy Silverado
- Chevy Tahoe transmission replacement
- Cadillac Escalade rebuilt transmission
- Custom rebuilt transmission for your vehicle
- Remanufactured transmissions for sale
- Wholesale rebuilt transmissions for auto repair shops
- Automatic transmission replacement and repair
- Certified remanufactured transmissions
- Transmission repair with warranty
- Direct transmission sales with no middlemen
Quantum Gear offers a full range of rebuilt and remanufactured transmissions for the top American makes, including Chevrolet, GMC, and Cadillac. Whether you're a vehicle owner, mechanic, or auto repair shop, we provide wholesale rebuilt transmissions with the best prices on the market. We ship nationwide, with fast and secure delivery.