TRANSMISSION / TRANSFER CASE — 2007.5–2012 DODGE RAM 6.7L CUMMINS

Whether you daily tow or chase ET slips, CPP Diesel stocks the parts that keep your 68RFE, G56, and NP271/NP273 alive under real Cummins torque. Shop deep pans and filtration, pressure and valve body upgrades, proven rebuild kits, heavy-duty clutches, and transfer case hard parts—all curated for 2007.5–2012 Ram 2500/3500.

68RFE: Cooling, Filtration & Service

• Mag-Hytec 68RFE Deep Pan — added fluid capacity and cooling fins.
• PPE 228052100 Cast Aluminum Pan — heavy-duty construction with drain & temp port.
• Dorman 265-870 Pan (budget + drain)
• Mopar 5179267AD Spin-On Filter & Mopar 5013470AE Sump Filter
• BD 1064043 Filter Service Kit

68RFE: Pressure, Valve Body & Hard Parts

• BD ProTect68 (1030362) Pressure Control Kit — boost clutch holding capacity with updated plates.
• BD PressureLoc (1030368-V2) — inline module to raise line pressure under load.
• BD 1030467 Valve Body (w/ Solenoid) or 1030468 Exchange Valve Body
• SunCoast 72960-16K / Sonnax Smart-Tech Drum — addresses CTF drum failures.

68RFE: Rebuild Kits & Thermal Bypass

• Revmax 68RFE-700 High-Performance Rebuild Kit (07.5–13)
• Revmax 68RFE-700A Rebuild Kit
• ATS 310-005-2392 Thermal Bypass Upgrade or CPP 310-005-2392 Thermal Bypass

G56 Manual: Clutches & Hydraulics

• South Bend SDD3250-GK Dual Disc (Street/Tow)  |  SSDD3600CBG Dual Disc (Heavy Tow)
• Valair NMU70G56-01 13" HD Organic  |  Valair NMU70G56 OEM Replacement
• Dorman CS650156 Slave Cylinder (G56)
• 07.5–12 G56 Manual Transmission Parts — hydraulics, bolts, bearings & more.

Transfer Case: NP271 / NP273 (4x4)

• NP271/NP273 Chain (HV064)  |  USA ZTBK485A Bearing/Seal Kit (03–12)
• CPP Chain & Sprocket Kit NP271/NP273
• NP271/NP273 Gasket/Seal & Rebuild Kits — bearings, seals, gaskets for 03+ Ram.
• Linkage/Bushings (NP271 manual shift) — shifter linkage & lever bushings.

Fitment Notes

• 68RFE: Standard automatic on 2007.5–2012 6.7L. Match connector color/year for valve bodies; always replace spin-on + sump filters during service.
• G56: Only manual offered in this era. Choose clutch by power level (street/tow vs. competition) and verify flywheel style.
• NP271/NP273: 4x4 trucks use NP271D (manual lever) or NP273D (electric). Verify by VIN/build and shifter type.

Related 07.5–12 Categories

• Gauges & Monitors — watch trans temp and converter lockup.
• Cooling System — auxiliary coolers pair well with tow builds.
• Differential & Drivetrain — shafts, u-joints, and traction to match power.

Frequently Asked Questions

What’s the first 68RFE reliability mod?

Start with fresh spin-on and sump filters, a deep pan for cooling, and add ProTect68 or PressureLoc to increase clutch holding power.

Do I need tuning for these 68RFE upgrades?

No tune is required for pans, filters, valve bodies, or pressure modules. A quality rebuild kit and correct line pressure typically improve longevity without ECM changes.

Which G56 clutch should I pick?

Stock to mild towing: Valair OEM replacement. Heavy tow/street power: South Bend SDD3250-GK. Big power/heavy tow: SSDD3600CBG.

My transfer case chain slips under load—what fixes it?

Install a new HV064 chain and inspect sprockets; for full overhauls use the USA ZTBK485A bearing/seal kit and fresh seals/gaskets.