Transmission Solutions
Professional Transmission Rebuild & Remanufacturing Services by OS Transmissions
At OS Transmissions, we specialize in professional transmission rebuild, remanufacturing, diagnostics, and drivetrain solutions for passenger vehicles, performance applications, commercial fleets, and heavy-duty operations.
Since 2010, our team has worked with everything from daily drivers and classic vehicles to commercial fleet units, work trucks, shuttle vehicles, and severe-duty transmission applications.
Every transmission application requires a different level of service, component evaluation, and operating strategy. That is why OS Transmissions offers multiple rebuild solutions tailored to the intended use of the vehicle.
Whether you need a dependable OEM-style rebuild, a performance-oriented transmission upgrade, or a heavy-duty commercial solution, our goal is to provide rebuilds that prioritize reliability, proper component evaluation, and long-term operational performance.
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🔧 Our Transmission Solutions
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🟢 Essential Rebuild Solution (Tier 1)
Reliable OEM-Style Rebuilds for Daily Drivers
Our Essential Rebuild Solutions are designed for standard-use passenger vehicles and daily transportation needs.
This service focuses on:
- OEM-style rebuild procedures
- Internal component inspection and replacement
- Dependable street-use operation
- Proper fluid and hydraulic system function
- Reliable day-to-day drivability
Essential rebuilds are best suited for:
- Daily drivers
- Standard commuting vehicles
- Light-duty truck applications
- Vehicles operating under normal driving conditions
Common Applications
- Sedans
- SUVs
- Light-duty pickups
- Family vehicles
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⚡ Performance Rebuild Solutions (Tier 2)
Upgraded Transmission Solutions for Performance Applications
Our Performance Rebuild Solutions are intended for vehicles operating beyond factory driving conditions.
These rebuilds may include:
- Performance-oriented internal upgrades
- Shift kit upgrades
- Increased holding capacity
- Reinforced internal components where applicable
- Improved durability for modified applications
Performance rebuilds are commonly recommended for:
- Modified street vehicles
- High-horsepower applications
- Muscle cars
- Performance truck builds
- Enthusiast-driven vehicles
Performance Services May Include
- Valve body modifications
- Shift improvement packages
- Internal hard-part upgrades
- Enhanced clutch materials
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🚛 Heavy-Duty & Fleet Rebuild Solutions (Tier 3)
Commercial & Severe-Duty Transmission Services
Our Heavy-Duty & Fleet Solutions are designed for commercial operations and severe-duty applications where transmissions operate under increased load, repetitive stop-and-go cycles, towing conditions, or demanding work environments.
These rebuild solutions are commonly recommended for:
- Commercial fleet vehicles
- Waste management vehicles
- Work trucks
- Shuttle vehicles
- Tow and hauling applications
- Severe-duty operating environments
Heavy-duty rebuild strategies may include:
- Reinforced internal components
- Severe-duty component upgrades
- Increased durability considerations
- Cooling and contamination evaluation
- Commercial-use operational recommendations
Because commercial applications place increased stress on transmission systems, severe-duty vehicles may require different rebuild strategies and service recommendations than standard passenger vehicles.
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🧰 Bench Work Transmission Services
Transmission Rebuild Services for Outside Shops & Installers
OS Transmissions also offers bench work transmission rebuild services for:
- General repair shops
- Independent installers
- Fleet maintenance operations
- Outside automotive facilities
Bench work services apply when the transmission is removed and reinstalled by a third-party shop or installer.
Under bench work service:
- OS Transmissions rebuilds the transmission unit only
- Installation is performed externally
- Warranty coverage is subject to installation requirements and inspection procedures
Related Policies & Support Resources
- Bench Work Warranty & Installation Policy
- Core Evaluation & Acceptance Policy
- Failure Determination & Warranty Claim Procedure
- Torque Converter Installation Guide
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🔍 Transmission Diagnostics & Evaluation
Proper diagnostics are critical before transmission removal or rebuild authorization.
Depending on the vehicle and service type, diagnostics may include:
- Scan tool diagnostics
- Diagnostic trouble code (DTC) evaluation
- Road testing
- Hydraulic and shifting evaluation
- Electrical system inspection
- Cooler contamination inspection
OS Transmissions performs transmission evaluation procedures to help determine whether issues are related to:
- Internal transmission failure
- Electrical faults
- Valve body concerns
- Torque converter issues
- Cooling system contamination
- External drivability conditions
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⚙️ Core Evaluation & Hard-Part Inspection
All rebuildable transmission units are subject to internal inspection and evaluation.
Transmission condition may vary significantly depending on:
- Heat exposure
- Contamination
- Internal hard-part damage
- Prior rebuild quality
- Severe-duty operation
- Installation-related failures
Additional hard-part replacement costs may apply if damaged or unusable components are identified during teardown inspection.
For more information, please review our:
Core Evaluation & Acceptance Policy
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📚 Technical Resources & Installation Guidance
Proper installation procedures are critical to transmission reliability and warranty validation.
We strongly recommend reviewing all installation procedures prior to startup.
Technical Resources
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🤝 Fleet & Commercial Partnerships
OS Transmissions works with commercial accounts, fleet operators, outside repair facilities, and industry partners requiring transmission rebuild and remanufacturing support.
Our experience includes servicing vehicles operating in:
- Fleet environments
- Severe-duty applications
- Commercial transportation
- Waste management operations
- Industrial work vehicle environments
Fleet and commercial service terms may differ from standard passenger vehicle applications depending on vehicle usage and operating conditions.
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💬 Questions About Your Application?
Every transmission application is different.
Whether you are operating:
- Daily Driver
- Performance Build
- Fleet Vehicle
- Commercial Work Truck
- Outside Repair Facility
Our team can help determine the most appropriate rebuild solution based on vehicle usage, operating conditions, and transmission condition.
Contact OS Transmissions for additional information regarding rebuild solutions, diagnostics, commercial support, or installation guidance.