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The lever and cable physically select mechanical ranges such as Park, Reverse, Neutral and Drive. Electronic transmissions also use shift-solenoid commands to determine the forward gear.

VX Rail adds separate electrical gear commands while a compatible existing lever and linkage continue to select mechanical ranges. VX with Control Kit combines a new floor shifter and supported manual electronic controls.

VX Floor is a mechanical cable-operated selector. It does not include the integrated switches that independently command forward-gear solenoids. An AW4 or A340 still needs an appropriate electronic control strategy.

In the covered standalone AW4/A340 installation, transmission-side shift-solenoid circuits connect to VX instead of the factory TCM outputs. VX commands shift solenoids 1 and 2 directly. Converter lockup is separate.

The mechanical lever, cable and transmission range selector handle these ranges. VX Control’s electrical switches perform a different job: supported forward-gear control.

For supported installations, the separate Automatic / Manual Switch Kit selects factory TCM control or RAD manual control. Factory AUTO mode requires a functioning TCM and the vehicle inputs it needs.

Do not force the lever or drive with incomplete range engagement. Cable routing, bend radius, outer-cable anchoring, brackets, linkage alignment and available travel affect mechanical selection.

No. VX Rail supplies manual electrical commands for supported shift-solenoid circuits. A separate mechanical selector and linkage still operate the transmission ranges.

A properly wired supported AW4 setup can use VX Rail for independent manual forward-gear commands. That does not provide factory automatic mode or automatically manage converter lockup.

That symptom alone does not establish a failed controller. Lockup is a separate circuit; mode-selector wiring, grounds, connectors and any shared TCM/RAD connections need review.

Cams and electrical switches fit a compatible Winters / Art Carr shifter. Lever movement commands supported forward-gear solenoids; the existing shifter still handles mechanical range selection.

The standard Winters AW4/A340 switch kit does not fit the modified Rock Gate pattern described in RAD’s installation guidance.

Different harness revisions exist. The current Winters v1.2 guide identifies a red external 12V+ input; documented legacy assemblies used black power-feed leads. Do not identify a circuit from color alone or assume black means lockup.

Stop if the supplied hardware does not thread cleanly. Confirm the cam, mounting threads and hardware revision rather than cutting new threads or forcing a bolt.

Yes. Two rocker switches are preinstalled in a CNC aluminum housing. One selects TCM automatic or RAD manual control; the other provides separate converter-lockup switching where supported.

No. The selector switches between control sources; it does not generate automatic shift logic. Factory AUTO operation requires a functioning TCM and its required inputs.

RAD’s current guidance is to stop the vehicle fully and release torque-converter lockup before changing modes.

No. In the covered AW4/A340 two-solenoid setup, forward-gear commands and converter lockup are different functions and circuits. Manual gear control does not automatically include lockup control.

VX Tap uses two paddles beside the shift handle to request upshifts and downshifts through a compatible transmission-control harness. The covered AW4/A340 VX Control setup directly commands two forward shift solenoids.

The current VX Tap listing offers 6L80/90E, 8L90 and 6R80 applications. The receiving controller, harness interface, mechanical bracket and cable travel must match your installation.

No. Tap inputs are a driver-control interface; the compatible transmission control system handles electronic shifts. Do not apply AW4-style direct-solenoid wiring to a 6R80 or another modern tap-shift application.

Do not attempt a moving forward-to-Reverse shift or bypass interlocks. Fully stop before selecting Reverse; the mechanical gate, controller and transmission safeguards all matter.

Identify the REAR transfer case connected to the driveshafts. A gear-driven front reduction box can be paired with a chain-driven rear case, so the front box alone does not determine the version.

No. Moving the rear-case controls forward does not establish compatibility with a forward-shift front crawl box. The standard Triple Stick uses a compatible top-shift front mounting arrangement.

The standard arrangement retains the existing front-case lever and adds two levers for the rear case, giving three controls in total.

The front crawl-box lever handles its range. The added rear-case controls handle the rear range and 2WD/4WD functions. Exact left/center/right positions and directions depend on the variant and linkage.

Some installations require floor modification. Clearance depends on the cases, clocking, adapters, seats and body arrangement; there is no universal cut template or body-lift requirement.

The product moves the two rear-case controls forward. That alone does not provide the stock front lever mount or automatically make a complete three-control arrangement.

Stop using an affected shifter that no longer positively operates the case. RAD needs photos and order information to assess the component and correct repair or replacement.

Documented RAD support identifies a transfer-case breather provision. The reviewed guidance does not establish one thread size for every housing revision.

The reviewed guidance does not establish an approved seal-replacement method or part number for every housing revision.

No. Use the RAD guide for your product and harness revision with the donor vehicle’s wiring diagram. Identify actual solenoid circuits rather than carrying colors across products or years.

Different switch and harness revisions exist. Do not improvise a wiring solution or force nonmatching hardware.

Include the product, transmission and donor year, controller, what worked previously, what changed and the symptom. Distinguish a lever or cable problem from an electronic gear-selection problem.

Choose your product below. The guide link checks its designated CURRENT folder in Google Drive each time you visit. If a guide is being prepared, contact RAD for instructions.

Vehicle model alone is not enough after a swap. Identification tags, donor year, controller and photos of the actual shifter and drivetrain distinguish similar variants.