Dodge-Cummins Diesel
Heavy Duty & High Performance Upgrades

Sonnax Dodge-Cummins diesel products deliver the best improvements available for this time-honored powerhouse transmission. Whether put to the test in a daily use workhorse or plow truck, or ensuring worry-free trips with a trailered truck pulling heavy loads, these dependable upgrades for Chrysler Dodge-Cummins diesel transmissions are the top choice for all high-quality builds.

Transmission Upgrades All Transmission Parts Request Catalog

View Performance Parts by Application:

Transmission Parts: 68RFE 47RE 47RH 48RE AS68RC
Torque Converter Parts: 68RFE A618, 47RH/RE, 48RE (310mm) A465, AS68RC
Driveline: Sonnax Driveline Performance Builds

Sonnax: the proper way to beef up your transmission.
R. Weise, Versailles, IN

48RE Smart-Tech^® Big Input Shaft Kit

THE END of Input Shaft Failure

68RFE Smart-Tech^® Overdrive Clutch Housing Kit

Maximize Clutch Capacity & Squawk Resistance

66/68RFE Heavy Duty Overdrive Clutch Hub & Shaft

Critical Upgrade to Protect Any Vehicle at Any Power Level

AS68RC Heavy Duty K2 Clutch Hub

Prevent Shift Problems & Increase Reliability of Dodge Trucks

Multi-Plate Converter Clutch Kits

Increases Torque Capacity

RFE Universal
Remanufactured Valve Body

Fits '99-Later, Any OE Solenoid or Checkball
Configuration

Sonnax in every build, stock or performance!
A. Torres, Del-Tron Transmissions

47RH/RE, 48RE Shaft Build Guide

It all started with the legendary #1 Dodge performance input shaft from Sonnax. Today you can build in unmatched transmission reliability from end to end with input, intermediate and output shafts for all power levels of work, sport and extreme racing vehicles.

Input Shafts

Heavy Duty	Extreme Duty
Heavy Duty	Stock Capacity	20% More Direct Clutch Torque Capacity	Extreme Duty	Big Shaft (35 Spline) With Custom Billet Pump Cover
20% More Direct Clutch Torque Capacity			Extreme Duty	Big Shaft (35 Spline) With Custom Billet Pump Cover

Intermediate Shafts

Heavy Duty	Extreme Duty
Heavy Duty	Direct Replacement	Extreme Duty	Machining Required

Output Shafts

Heavy Duty	Extreme Duty
Heavy Duty	23 Spline Shaft 4WD 47RE, 48RE Only	Extreme Duty	29 Spline Shaft & Input Gear ’03–’06 4WD 48RE Only with NV271 or NV273 Transfer Cases
29 Spline Shaft 47RE, 48RE Only	23 Spline Shaft 4WD 47RE, 48RE Only

Sonnax high performance products meet the toughest challenges faced by hard-working, daily-use drivetrains as well as racing units going all-out on the street or track.

Learn About Sonnax Heavy Duty & High Performance See All Heavy Duty & High Performance Upgrades

You guys are the masterminds of this industry.
J. Johnson, Crystal Lake Transmissions

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Dodge-Cummins Diesel Heavy Duty & High Performance Upgrades