What is the RAD Designs Rail Controller?
The RAD Designs Rail Controller is a precision-built electronic shift controller designed for automatic transmissions, providing complete manual control over gear selection. It works seamlessly with electronically controlled transmissions, enabling precise, on-demand shifting.
You do not need a TCM to use the Rail Controller, but you can wire it in with switches to retain your automatics shifting features if you still have the TCM system in your vehicle.
The controller body is 3/4" thick x 3" long x 2" tall. There are stops for each gear up and down shifting.
Key Benefits and Features of the RAD Designs Rail Controller
Many off-road enthusiasts, rock crawlers, and custom vehicle builders face challenges with stock automatic transmissions that limit control over gear selection. Traditional setups often fail to provide the level of precision needed for technical off-road maneuvers or high-performance applications. These limitations can result in:
- Inability to hold a specific gear.
- Unintended gear changes during critical moments.
- A lack of control for reverse-to-forward transitions during obstacles or competition.
The Rail Controller eliminates these frustrations by offering direct, reliable control of each gear, allowing the driver to dictate transmission behavior with confidence.
Why Would Someone Want It?
- Improved Off-Road Performance: The Rail Controller is perfect for rock crawlers, Ultra4 racers, and other off-road enthusiasts who need to maintain control in extreme conditions.
- Custom Build Versatility: It’s an ideal solution for custom vehicle projects, such as engine or transmission swaps, where traditional controls might not integrate well.
- Precision Gear Control: Drivers can easily shift between gears or quickly transition from reverse to first, crucial in technical or high-stress scenarios.
- Increased Reliability: By bypassing factory electronics, the Rail Controller reduces the risk of unexpected shifts and improves overall drivability.
- Enhanced Driving Experience: With its straightforward operation and robust design, the Rail Controller transforms how drivers interact with their automatic transmissions, offering a more intuitive and satisfying driving experience.
NOTE: You still need a floor shifter with this unit, it is just for 1-4 shift control. This will generate a code on OBD2 vehicles.
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Supported Transmissions:
These units will work with the following:
- AW4 found in Jeep Cherokees, Grand Cherokees and some Wranglers.
- A340H/F/E used in Toyota trucks, 4Runner's, Supra's and Lexus 400 series.
- RE4R01A found in Nissan Hardbody trucks, Pathfinders and XTerras. Check you trans ID to verify.
- GM 4L60E & 4L80E
- Additional transmissions with similar electronic control systems may also be compatible (contact RAD Designs for specific applications).
Ideal for:
- Custom vehicle builds that need manual control over automatic transmissions.
- Rock crawlers, Ultra4 racers, and other off-road applications requiring precise gear control.
- Engine swaps where integrating the original transmission controller is challenging or impractical.
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