I have a 1990 XJ with a A4W transmission and a Selec-Trac Full Time 4WD transfer case. The front axle is a Dana M30 and the rear is a Dana 35C. I never seem to hear transfer cases referred to as Selec-Trac, but rather by numbers and letters like NP 231.
I am getting ready to lift the XJ and Rubicon Express recommends a slip yoke eliminator and CV driveshaft for the NP 231 transfer case. How can I determine if my transfer case is a NP 231 and if it needs the extra components?
I have done a search for the Dana M30 axle and couldn’t find any information on it. Is it a reliable axle? Is it vacuum activated and, if so, what is the best way to eliminate the vacuum control and install something better?
I am getting ready to lift the XJ and Rubicon Express recommends a slip yoke eliminator and CV driveshaft for the NP 231 transfer case. How can I determine if my transfer case is a NP 231 and if it needs the extra components?
I have done a search for the Dana M30 axle and couldn’t find any information on it. Is it a reliable axle? Is it vacuum activated and, if so, what is the best way to eliminate the vacuum control and install something better?