When converting your 1994–2002 Dodge Ram 4x4 to free-spin hubs or eliminating the CAD (Center Axle Disconnect) system, you lose the factory 4WD indicator light functionality. This plug-and-play relocation harness restores that functionality—without vacuum lines or permanent modifications.
 
Key Features:
Eliminates vacuum switch and leak-prone vacuum lines
Retains 4WD indicator light functionality using an electric switch
Compatible with Posi-Lok kits and other CAD delete setups
Uses Dorman 600-551 transfer case switch (optional)
Made in Iowa with USA-sourced GXL automotive wire
Includes braided sheathing, weatherproof connectors, and pushpin zip ties
 
Benefits:
Prevents HVAC issues caused by vacuum leaks
Cleaner, more reliable setup for off-road use
No permanent modifications—fully reversible
 
Installation:
Remove factory vacuum switch and lines
Route harness along original vacuum line path
Replace vacuum switch with  electric switch in transfer case
Plug into existing CAD harness
 
Note:
 Optional switch is different than the stock switch found on the CAD and cannot be reused.