Upgrade Your Dodge RAM with Professional-Grade G56 Components
When it comes to heavy-duty manual transmissions for Dodge RAM trucks equipped with 5.9L and 6.7L Cummins engines, the G56 6-speed manual transmission stands as the gold standard. At Tennessee Standard Transmissions, we specialize in delivering premium remanufactured G56 transmissions and brand new replacement components that meet or exceed OEM specifications.
Remanufactured G56 Manual Transmissions: Built to Last
Our HD G56 DODGE RAM 4x4 5.9/6.7 Cummins transmission represents the pinnacle of remanufacturing excellence. Each unit undergoes a comprehensive rebuild process that includes complete disassembly, inspection, and replacement of all wear components with premium parts.
These remanufactured transmissions are specifically engineered for 2005-2018 RAM 2500 and 3500 trucks with 4x4 configurations. Whether you're running a 5.9L or 6.7L Cummins diesel engine, our G56 '05-'18 RAM 3500 manual transmission delivers the durability and performance your heavy-duty truck demands.
Brand New G56 Front Case Half: OEM Quality Without the OEM Price
For builders and repair shops seeking individual components, our brand new HD G56 front case half offers an exceptional solution. This critical component is manufactured to exact OEM specifications and provides a cost-effective alternative to purchasing an entire transmission assembly.
The front case half is essential for:
- Complete transmission rebuilds requiring new housing
- Repair of cracked or damaged cases
- Custom transmission builds and upgrades
- Professional remanufacturing operations
Why Choose Tennessee Standard Transmissions?
Core Exchange Program: We offer a comprehensive core exchange program that reduces your upfront costs and supports sustainable remanufacturing practices.
Rebuild & Return Service: Send us your existing G56 transmission, and our expert technicians will rebuild it to like-new condition with a full warranty.
Nationwide Shipping: We ship complete transmissions and components across the continental United States with freight delivery options including lift-gate service.
Expert Support: Our team understands Cummins-powered RAM trucks inside and out, providing technical guidance to ensure you get the right transmission for your application.
G56 Transmission Specifications
The G56 6-speed manual transmission is designed for extreme durability in heavy-duty applications. Key features include:
- 6-speed manual gearbox with overdrive
- Compatible with 5.9L and 6.7L Cummins diesel engines
- 4x4 configurations for RAM 2500 and 3500 trucks
- Model years 2005-2018
- Heavy-duty construction for towing and hauling
Ready to Upgrade Your Drivetrain?
Whether you need a complete remanufactured G56 transmission or a brand new front case half for your rebuild project, Tennessee Standard Transmissions has the expertise and inventory to support your needs. Browse our complete selection of manual transmissions and drivetrain components, or contact our team for personalized assistance.
All remanufactured transmissions come with our comprehensive warranty and are backed by decades of drivetrain expertise. Don't settle for inferior rebuilds—choose the transmission specialists who understand what your Cummins-powered RAM truck requires.

