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Unread 09-09-2014, 07:43 PM   #1
Sundodger
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1992 YJ Wrangler 
 
Join Date: Jan 2013
Location: Valley Springs, CA
Posts: 45
I need a new NP231 transfer case

So I snapped my rear drive shaft (ok because I wanted to replace it and put in a SYE at the same time) and it did some pretty good damage to my muffler and destroyed my transfer case. I know the PO had just had it rebuilt too. So guys, should I go the used or brand new route and how much should the transfer case run me used and or new?

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Unread 09-10-2014, 01:47 AM   #2
whiteyj1994
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1994 YJ Wrangler 
 
Join Date: Sep 2007
Location: Valley Springs,CA
Posts: 245
what did you break on your tc ? do you have pictures? The 231 is pretty stout, if you broke the tailshaft housing your going to replace it anyway with a SYE kit.
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Unread 09-10-2014, 07:19 AM   #3
StanF
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1995 YJ Wrangler 
 
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Location: Austin, Texas
Posts: 1,300
New ones are outrageously expensive. Go used - you might be able to find one with an SYE. Or used + rebuild kit + SYE.
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Unread 09-10-2014, 08:04 AM   #4
Que89YJ
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1989 YJ Wrangler 
 
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Location: Detroit, Michigan
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Used. Car-parts.com or google for Used Jeep parts scrap yards in your area.
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Unread 10-30-2014, 04:22 PM   #5
Sundodger
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1992 YJ Wrangler 
 
Join Date: Jan 2013
Location: Valley Springs, CA
Posts: 45
Sorry for the delayed response, but yes that's exactly what I had done. I was climbing a hill, pulling my trailer with my quad in it and when I down shifted into 3rd the housing (U joint which connects into the rear differential) snapped. So I had to rebuild my transfer case which allowed me to update my gear ratio to 4-1, I put in a SYE and obviously a new drive line. The spinning drive shaft destroyed my exhaust which had been rubbing on my front drive shaft so I had the exhaust completely redone and redirected. While I was at it, I put in a vacuum kit because 4WD wasn't engaging properly. Next up is a front and rear axle upgrade. Probably go D44 in the back but just upgrade the D30 front with a chromolly shaft. Lockers in the front and back and I'll be ready to hit harder trails.

I just put the doors back on, took the soft top off and put my hard top back on which has been sitting for 2 years now.

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