Product Description
The TRANSGO SK 48RE Shift Kit is a proven valve body repair and performance upgrade for 2003-2007 Dodge Ram 2500 and 3500 trucks equipped with the 48RE automatic transmission. Designed to deliver short, clean shifts without harshness, this kit helps correct some of the most common 48RE complaints including TCC slip or shudder, converter drain-back, 2nd gear band failure, and 3rd clutch failure. By increasing line pressure and improving clutch holding capacity, the SK 48RE is an ideal upgrade for towing, work trucks, street-driven Cummins builds, and owners looking for better transmission durability and cleaner lockup performance.
Why Choose the TRANSGO SK 48RE Shift Kit?
- Raises line pressure for improved clutch holding power
- Helps reduce TCC slip and shudder
- Reduces torque converter drain-back complaints
- Helps address common 48RE 2nd band and 3rd clutch failure issues
- Produces short, clean shifts without harsh banging
- Great for towing, work trucks, and performance-minded street builds
- Can be installed without removing the transmission from the truck
Fitment
- 2003 Dodge Ram 2500 / 3500 with 48RE automatic transmission
- 2004 Dodge Ram 2500 / 3500 with 48RE automatic transmission
- 2005 Dodge Ram 2500 / 3500 with 48RE automatic transmission
- 2006 Dodge Ram 2500 / 3500 with 48RE automatic transmission
- 2007 Dodge Ram 2500 / 3500 with 48RE automatic transmission
- Common application: 5.9L Cummins-equipped trucks using the Chrysler 48RE
Performance Benefits
TransGo engineered the SK 48RE to improve the valve body and internal hydraulic function of the transmission. The kit is designed for higher operating pressure, improving torque capacity across the friction elements and torque converter clutch. This makes it a smart choice for diesel trucks that tow, haul, or see increased power levels where the stock calibration can fall short.
What’s Included
- High-temp low-shrink sealing rings
- Lower 1-2 accumulator spring
- Throttle valve spring
- Part throttle body transfer plate, pin, and detent limit valve spring
- Part throttle valve spacer
- Hardened steel manual valve with converter charge in park provision
- 3-4 accumulator springs and plug
- Transfer plate, tapered plug, spring, checkball, and limit bushing
- 3-4 quick fill valve spring
- Main valve body separator plate
- Solenoid body plate
- PR valve shim, spring seat, and inner spring
- Boost valve bracket and optional tuning plate
- Drill bits
Specifications for TRANSGO SK 48RE
| Specification | Details |
|---|---|
| Part Number | SK 48RE |
| UPC | 810159322027 |
| GTIN | 810159322027 |
| Shipping Info | Shipping weight: 2.00 lb. Shipping dimensions: 2 in. x 10 in. x 11 in. |
| Fuel Type | Diesel / Gas |
| Prop 65 | WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov |
FAQ
What does the TRANSGO SK 48RE Shift Kit fix?
This kit is designed to help correct common 48RE problems including TCC slip or shudder, converter drain-back, weak shift feel, 2nd band failure, and 3rd clutch failure.
Is the SK 48RE good for towing?
Yes. The added line pressure and improved clutch holding capacity make it an excellent upgrade for towing, hauling, and hard-working diesel trucks.
Do I have to remove the transmission to install this kit?
No. TransGo notes that this kit can be installed with the transmission still in the truck, which makes it attractive for repair and upgrade work without a full transmission teardown.
Will this make the shifts harsh?
No. One of the main benefits of the SK 48RE is producing short, clean shifts without the banging or harshness that many cheaper shift modifications can create.
Is this only for diesel trucks?
No. TransGo lists the SK 48RE for 2003-2008 48RE gas and diesel applications, though it is especially popular on 5.9L Cummins-powered Dodge Ram trucks.
