CPP EXTREME DUTY G56 TRANSMISSION FOR 2005–2018 DODGE RAM

Product Description

CPP EXTREME DUTY G56 TRANSMISSION — 2005–2018 DODGE RAM 2500/3500

The CPP Extreme Duty G56 is purpose-built for work and towing. Each unit is professionally remanufactured with new wear components, precision inspection, and rigorous quality checks to deliver smooth shifts and long service life.

• Built for duty: Fully remanufactured with new bearings, seals, gaskets, and synchronizers.
• Critical-hard-part evaluation: Shafts, gears, and forks are inspected and replaced as required.
• Quality checked: Endplay and clearances verified; unit is pressure-tested and spin-tested before shipment.
• Direct fit: Bolts in place of the factory G56 for 2005–2018 Ram 2500/3500 (manual).

Vehicle Fitment

• Ram 2500/3500 with the G56 6-speed manual
  • Model Years: 2005–2018
  • Engines: 5.9L Cummins (2005–2007) and 6.7L Cummins (2007.5–2018)
  • Notes: Verify by VIN/ESN and transmission tag before ordering; cab & chassis and federal/California variants may differ.

What’s Included

• Complete remanufactured G56 transmission assembly
• Fill/drain plugs (installed)
• Basic installation guidelines

Recommended Parts (Sold Separately)

• OEM-spec clutch kit (disc, pressure plate, release bearing)
• Pilot bearing/bushing
• New flywheel or resurfacing as required
• Fresh fluid meeting manufacturer specification
• Mount/isolators as needed

Installation & Break-In Notes

• Always replace the clutch release (throwout) bearing and pilot bearing/bushing.
• Verify bellhousing alignment and clutch fork/CSC travel; adjust per service manual.
• Use only the recommended fluid; do not overfill. Check for leaks after first road test.
• Clutch break-in: light throttle, no full-load launches for the first 500 miles.

Core Return & Shipping

• Core charge required: A refundable core deposit applies. Core must be complete, drain fluids, and return in the supplied container.
• Freight shipping: Ships palletized via LTL. Commercial delivery with dock/forklift recommended; residential/liftgate available.
• Turnaround: Core is inspected upon receipt; deposit is refunded per core policy.

Quality Control Checklist (Each Unit)

• Visual crack check of case and covers
• Gear/shaft runout and tooth condition inspection
• New bearings, seals, gaskets, and synchronizers installed
• Shift rail/shift fork inspection and detent function check
• Endplay/clearance measurement and documentation
• Spin test and leak check prior to shipment

Specifications

FAQ

Will this fit my 2006 Ram 2500 5.9L?

If your truck uses the factory G56 6-speed, yes. Always confirm by the transmission tag and VIN.

What fluid should I use?

Use fluid that meets the factory specification for the G56. Do not overfill; recheck level after initial road test.

Is a new clutch required?

Strongly recommended. Replacing the clutch kit, pilot bearing/bushing, and release bearing helps ensure proper break-in and shift quality.

How does the core deposit work?

A refundable core charge applies at purchase. Return your complete core in the provided container; after inspection, the deposit is refunded per our core policy.

Can I tow immediately after install?

Allow a clutch break-in period (about 500 miles of light-to-moderate driving) before heavy towing.