BRC 88MJ Posted December 22, 2006 Share Posted December 22, 2006 I've got an NP231 from an XJ that had the vacuum disconnect on the D30 front. I'm swapping the axle and 231 into my MJ but will be deleting the vacuum disco. There's a connector on the driver's side of the TC that looks like it's vacuum lines. What was this for? Is there going to be a problem if I don't reconnect these lines? The vacuum lines in the harness that I pulled were broken anyways. Thanks. Link to comment Share on other sites More sharing options...
Bounty Hunter Posted December 22, 2006 Share Posted December 22, 2006 You don't need to do anything to those vacuum ports, muck can't get through into the transfer case. You can unscrew the vacuum switch if you like, and replace it with a plug similar to a 231 from a non-disco jeep. Link to comment Share on other sites More sharing options...
BRC 88MJ Posted December 22, 2006 Author Share Posted December 22, 2006 You don't need to do anything to those vacuum ports, muck can't get through into the transfer case. You can unscrew the vacuum switch if you like, and replace it with a plug similar to a 231 from a non-disco jeep. Thanks for the advice. Sounds like a good plan. Link to comment Share on other sites More sharing options...
BLHTAZ Posted December 22, 2006 Share Posted December 22, 2006 I just got 4 of those little rubber vacuum caps and covered the connections and left the switch where it is. Link to comment Share on other sites More sharing options...
CWLONGSHOT Posted December 23, 2006 Share Posted December 23, 2006 Just be sure to trace and plug the vacume SOURCE!!! Merry Christmas everyone!! CW Link to comment Share on other sites More sharing options...
Pete M Posted December 23, 2006 Share Posted December 23, 2006 Just be sure to trace and plug the vacuum SOURCE!!!CW Yeah, I still have to do that on my 90. I just sorta ripped out all the lines without seeing which one lead to the engine. :( Link to comment Share on other sites More sharing options...
pingpong Posted December 23, 2006 Share Posted December 23, 2006 Do a later model SYE and it does away with it too :brows: Link to comment Share on other sites More sharing options...
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