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Unread 01-30-2013, 06:27 PM   #1
ki4cye
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1990 YJ Wrangler 
 
Join Date: Aug 2009
Location: Moultrie, Georgia
Posts: 208
4l60 or 4l80 in a yj

I have a 90 yj with a 87 chevy tbi 350. Currently running an AX15 and 231j that is about 41'' long with a stock 6cyl drive shaft. Have a 3'' body lift and 4'' spring lift with factory axles for now. I plan on changing axles later, probably go with dana 44s. I am going to an auto trans soon,either 4l60 or 4l80. My question, is anyone running a 4l80 in a yj. If so how short is your rear drive shaft? If i run a dana 300 behind the 4l80 will i end up up with a decent length driveshaft and driveline angle. I would rather have the 80 but if its gonna eat u-joints Ill go with the 60. I cant seem to find where anyone has done a writeup on a 80 swap that posted how it turned out. If anyone has a link to a build please share. Thanks for any and all help.

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Unread 02-02-2013, 08:56 PM   #2
leftlanetruckin
XJ on 37's
 
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1998 XJ Cherokee 
 
Join Date: Jul 2006
Location: missouri via blackpool,lancs.
Posts: 10,452
For your setup, a K case 700R4 or 4L60E is more than enough. Maybe why not many have bothered with the 4L80E?
You can then get a 231C HD transfer case and it will bolt right up to a 4wd 700R4/4L60E.

Martin
__________________
1998 XJ on 37's.JK Rubi axles with chromo shafts and ctm's, 4:1 transfer case, etc etc etc.The Cherylkee....
2003 Range Rover HSE, 4.4 Quad Cam.
1998 Range Rover 4.6 HSE
2000 4.7 4WD WJ with a rebuilt motor.
4.3/700r4/new frame buildup (YJ)....
http://www.jeepforum.com/forum/f12/swap-offically-underway-324622/

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Unread 02-03-2013, 11:17 AM   #3
ki4cye
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1990 YJ Wrangler 
 
Join Date: Aug 2009
Location: Moultrie, Georgia
Posts: 208
Ok thanks. What years for the K case 4l60. Ill be getting one soon. The local pick and pull has a sale going now. All transmissions $80 and all t-cases $30
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Unread 02-03-2013, 03:10 PM   #4
leftlanetruckin
XJ on 37's
 
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1998 XJ Cherokee 
 
Join Date: Jul 2006
Location: missouri via blackpool,lancs.
Posts: 10,452
Hell, maybe 1990 and later?
There will be a massive letter K stamped in the side of it, cant miss it.
The 231C HD will have exactly that on the round tag on the back of it.

Martin
__________________
1998 XJ on 37's.JK Rubi axles with chromo shafts and ctm's, 4:1 transfer case, etc etc etc.The Cherylkee....
2003 Range Rover HSE, 4.4 Quad Cam.
1998 Range Rover 4.6 HSE
2000 4.7 4WD WJ with a rebuilt motor.
4.3/700r4/new frame buildup (YJ)....
http://www.jeepforum.com/forum/showthread.php?t=324622

Years to gain the hands on experience, and offer it freely.
Minutes to gain the knowledge from the internet, and quote it just as freely.
Choose wisely!
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Unread 02-03-2013, 05:02 PM   #5
ki4cye
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1990 YJ Wrangler 
 
Join Date: Aug 2009
Location: Moultrie, Georgia
Posts: 208
Thanks for the info. Hope to be going to get one friday
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