Tex06 Posted December 31, 2016 Share Posted December 31, 2016 What is this black rubber line on the transfer case? NP231 off a '92 MJ w/4x4. I cut it, will reconnect if important when installing new tranny. Sent from my SM-G930T using Tapatalk Link to comment Share on other sites More sharing options...
HOrnbrod Posted December 31, 2016 Share Posted December 31, 2016 Breather vent line. Link to comment Share on other sites More sharing options...
DirtyComanche Posted December 31, 2016 Share Posted December 31, 2016 Yup, vent line, it is important. Link to comment Share on other sites More sharing options...
Minuit Posted December 31, 2016 Share Posted December 31, 2016 Vent. You need it. Link to comment Share on other sites More sharing options...
desbennett004 Posted December 31, 2016 Share Posted December 31, 2016 I extended mine by using a piece of hard brake line as a joiner to add more tubing. Sent from my SM-N900W8 using Tapatalk Link to comment Share on other sites More sharing options...
Tex06 Posted December 31, 2016 Author Share Posted December 31, 2016 Yep figured that out once I got the tranny out. I'll run it up into the engine bay like the front axle Sent from my SM-G930T using Tapatalk Link to comment Share on other sites More sharing options...
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