Advance Adapters Low Range Switch - 300378A - ADV300378A
07-11 Wrangler JK, 2 & 4 Door;03-06 Wrangler TJ;Rubicon models only;NP271 transfer case;Allows you to use low range in 2WD; California Residents: WARNING This kit is a quick fix for the Jeep TJ Rubicons, JKs & Power Wagons. This kit tells the computer system that the vehicle is in low ratio, disabling the ESP on JKs and enabling the locker option on the TJ Rubicons & Power Wagons. This kit will not light the 4WD dash light in high range. It will work on the Jeep JKs, however, Kit 300377A is a control module that keeps all the stock Jeep functions as well as the dash light in 4WD high. The 300377A is the most recommended kit for the Jeep JKs.