NP231 questions..

[pitchitpitchit]

I have never split a T-case apart and want to work on mine now. Its time I learn... I have a 99 TJ Sport. It looks like the t-case just started leaking a bit ( I look under the Jeep after every wheelin trip). It is wet right around where it mates with the 32RH tranny. I have checked the levels in the tranny and the t-case and neither are low yet. The fluid in the t-case is a little darker and a bit grainy. This makes me think its the t-case leaking. What do you think?

I am thinking the chain may be worn, causing the grainy looking ATF. Its still stock except for an AA SYE put in about a year and a half ago.

Any input would be appreciated.

[SlowMo]

Rebuilding a 231 is not very difficult. So if you think it needs it you should have no problem at all. Pulling the rear bearing on the front output shaft maybe the trickest part. There's probably some special tool for this, or you could just have a shop pull it. I would be surprised though if your chain is worn out. I have a 95 with 150k on it and haven't needed to replace the chain yet. I suggest that you change the oil first. If after running it a while you still think it needs a rebuild, then by all means do it.