CPP EXTREME DUTY G56 TRANSMISSION FOR 2005–2018 DODGE RAM

CPP Extreme Duty G56 Transmission — Built for Tow, Tune & Longevity

CPP’s Extreme Duty G56 is a thoroughly re-engineered 6-speed manual for 2005–2018 Ram 2500/3500 Cummins trucks. It’s assembled with upgraded internals, precision-set clearances, and verified shift quality—purpose-built to handle diesel torque, frequent towing, and serious daily miles.

• SKU: G56EX
• Core Charge: +$2,000 option (refund on approved core return)
• Reviews: 5★ average (2 reviews)

Why This Beats a “Basic Reman”

• Upgraded/hardened wear items for diesel load and heat
• Precision assembly with documented endplay/runout targets
• Matched top cover & shifter by year and drivetrain (2WD/4WD)
• 3-Year, Unlimited-Miles Craftsmanship Warranty

Vehicle Fitment

Designed for 2005–2018 Ram 2500/3500 equipped with the G56 6-speed manual. Choose 2WD or 4WD and your model year at checkout.

What’s Included

• Fully built CPP Extreme Duty G56 transmission
• Matched shifter/top cover (year-correct)
• Fill & break-in guide
• Core return instructions

Recommended Supporting Parts (Finish the install right)

• Shop all G56 clutch kits
• Valair OEM Replacement G56 (stock organic): NMU70G56
• South Bend G56-OR-HD (HD organic single disc): G56-OR-HD
• South Bend G56-OFEK (organic/feramic single disc): G56-OFEK
• South Bend SSDD3600CBG (Super Street dual disc): SSDD3600CBG
• Valair Quiet Street Dual Disc Ceramic: QG56DDSN
• Hydraulics (pre-bled master/slave): Valair NMU70HYD-03

Comparison Table

Build-Sheet & QC Highlights

• Input/output shaft runout and endplay within CPP spec
• Shift rail detent & synchronizer function check
• Case/cover torque & seal integrity verification
• Road-test for shift quality prior to shipment

Shipping & Core

Choose freight and core-handling options at checkout. You can ship your core first, or add the refundable core charge (+$2,000) to speed up delivery. Return shipping pickup is available.

Warranty

3-Year, Unlimited-Miles Craftsmanship Warranty from CPP.

FAQ

If you have a 2005–2018 Ram 2500/3500 with a G56 manual transmission, yes. Select 2WD or 4WD and your model year before adding to cart.

Stock power and light towing can use OEM-style kits. Tuned trucks, heavy tow, or oversized tires benefit from a rated clutch. See our G56 clutch kits.

Follow the included fill & break-in guide. Avoid abusive launches during initial miles and recheck for leaks/fasteners after heat cycles.

You can ship your core first (no charge added) or add the refundable core charge to your order to ship the CPP unit sooner. Core must be acceptable—see instructions in the box.