When I bought the Jeep Wrangler it had 2 problems. The air from the blower would only blow through the dash vent and the 4wd light on the dash would not illuminate when in 4x4 mode. I fixed both of these issues relatively easily, but I would recommend buying only the OEM Mopar transfer case switch. Here is where I bought mine.
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This procedure is slightly different depending on the transfer case you have. Im my case I have a NP231 transfer case, but the NP241 commonly in the Rubicon uses a different switch.
