NP231 transfer case without vacuum lines

[Dgroce]

Just replaced my transfer case on my YJ and the new one does not have a connection for the vacuum lines and therefore my Jeep stays in 4H. What can I do to use the newer transfer case without the vacuum lines and still allow the Jeep to shift to 2H, or 4L?

 

[Walt Jaquith]

Check out the alternatives to the vacuum operated CAD setup in the How To section of the forum here:

Center Axle Disconnect Replacement Options

One of the mighty downfalls of the YJ's axles (aside from the d35c) is the Center Axle Disconnect. Every YJ has them stock, and if you haven't been acquainted with yours yet, it may only be a matter of time! So what is the Center Axle Disconnect? Its the little box on the passenger side housing...

wrangleryjforum.com

 

[machoheadgames]

Just replaced my transfer case on my YJ and the new one does not have a connection for the vacuum lines and therefore my Jeep stays in 4H. What can I do to use the newer transfer case without the vacuum lines and still allow the Jeep to shift to 2H, or 4L?

Take pictures of it so we can see what it does have. If it has an electronic TJ 4wd switch, then it's as simple as just swapping the switch.

 

[Flyer58]

Is it actually staying in 4high or is it just the light stays on? If the transfer case is working then you should really be in 2high with the shifter all the way forward but the front right axle will still be connected like in the TJ with a straight single axle. That's still safe.