Advance Adapters Atlas Control Module - 300377
The JK control module is the only way of keeping all the stock functions operational when upgrading to an Atlas transfer case. This Module lights the dash lights in both high and low range as well as the settings on the ESP when in 4WD and lockers and swaybar disconnect on the Rubicon models. This kit is designed for the Atlas 2 speed but can be used on a 4 speed, However, the is no provision to connect an additional low range switch in the planetary housing. 07-18 Wrangler JK, 2 & 4 Door;Works with Atlas 2-speed transfer case;Can be used on a 4-speed case but there is no provision to connect an additional low range switch in the planetary housing;For cases built prior to August 2014; California Residents: WARNING
441.99 USD
Advance Adapters Low Range Switch - 300378A
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. 07-18 Wrangler JK, 2 & 4 Door;Rubicon models only;NP271 transfer case;Allows you to use low range in 2WD; California Residents: WARNING
43.68 USD
Advance Adapters 42RLE Rubicrawler Crawler Box - RUBI-JKAD
The RubiCrawler increases our available gear ratios allowing you to gear your Jeep to the terrain in which you are wheeling on. The various ratios will allow you more control of the vehicle which results in extreme off road performance while maintaining a fun and safe off-roading experience. Installs Between Transmission And Transfer Case;Provides Additional 2.72 Low Range;Includes Twin Stick Shifter;For Use In Jeep Jk Model Only;Requires Use Of ADV42R800 Computer Module;Does Not Include Shifter Knobs;For Use With 42RLE Automatic Transmission And NV241 Transfer Case; California Residents: WARNING
2537.99 USD
Advance Adapters Rubicrawler Computer Module - 42R800
This Electronic Control Module will interface with your vehicles factory computer to tell it that you are in low range and to keep the differentials locked and sway bar disconnected while in use. The vehicle will need to know that the gearing is changed to not throw any trouble codes. Advance Adapters RubiCrawler Control Module;Allows Differentials and Sway Bar Control To Function;Tells Vehicle Computer You Are In Low Range; California Residents: WARNING
242.99 USD
Advance Adapters Atlas Control Module - 300377A
The JK control module is the only way of keeping all the stock functions operational when upgrading to an Atlas transfer case. This Module lights the dash lights in both high and low range as well as the settings on the ESP when in 4WD and lockers and swaybar disconnect on the Rubicon models. This kit is designed for the Atlas 2 speed but can be used on a 4 speed, However, the is no provision to connect an additional low range switch in the planetary housing. NOTE: This Kit ( is for use on Vehicles with Atlas Transfer Case Production date of August 2014 and Later. If your Atlas production date is previous to August 2014, you will need part number PN300377. 07-18 Wrangler JK, 2 & 4 Door;Works with Atlas 2-speed transfer case;Can be used on a 4-speed case but there is no provision to connect an additional low range switch in the planetary housing;For cases built after August 2014; California Residents: WARNING
419.99 USD
Trail Gear Trail-Creeper Crawl Box - 100504-1-KIT
To build a dual transfer case, two reductions boxes are bolted back to back with a dual case adapter. These two are then bolted to a 4wd section. The TrailCreeper is ready to bolt onto the front of a top shift style, gear driven Toyota transfer case. Available with 21 or 23 spline input and output gears. Units are completely rebuilt and inspected. Low range gear ratio is 2.28. Floorboard and drive shaft modifications are required for dual transfer case installation. No core charge. One year warranty. Trail-Creeper Crawl Box;2.28 Gear Set;21 Spline Input;23 Spline Output;Forward Shift; California Residents: WARNING
956.40 USD
Trail Gear Trail-Creeper Crawl Box - 100507-1-KIT
To build a dual transfer case, two reductions boxes are bolted back to back with a dual case adapter. These two are then bolted to a 4wd section. The TrailCreeper is ready to bolt onto the front of a top shift style, gear driven Toyota transfer case. Available with 21 or 23 spline input and output gears. Units are completely rebuilt and inspected. Low range gear ratio is 2.28. Floorboard and drive shaft modifications are required for dual transfer case installation. No core charge. One year warranty. Trail-Creeper Crawl Box;2.28 Gear Set;21 Spline Input;23 Spline Output;Forward Shift; California Residents: WARNING
956.40 USD
Trail Gear Trail-Creeper Crawl Box - 100508-1-KIT
To build a dual transfer case, two reductions boxes are bolted back to back with a dual case adapter. These two are then bolted to a 4wd section. The TrailCreeper is ready to bolt onto the front of a top shift style, gear driven Toyota transfer case. Available with 21 or 23 spline input and output gears. Units are completely rebuilt and inspected. Low range gear ratio is 2.28. Floorboard and drive shaft modifications are required for dual transfer case installation. No core charge. One year warranty. Trail-Creeper Crawl Box;2.28 Gear Set;23 Spline Input;23 Spline Output;Forward Shift; California Residents: WARNING
1093.20 USD