4l60 or 4l80 in a yj - JeepForum.com

 
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post #1 of 5 Old 01-30-2013, 06:27 PM Thread Starter
ki4cye
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1990 YJ Wrangler 
 
Join Date: Aug 2009
Location: Moultrie
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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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post #2 of 5 Old 02-02-2013, 08:56 PM
leftlanetruckin
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1998 XJ Cherokee 
 
Join Date: Jul 2006
Location: missouri via blackpool,lancs.
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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.
2003 Range Rover HSE, 4.4 Quad Cam.
1998 Range Rover with a 6.0 LSx
1994 YJ, 4.3/700R4/OME SOA, etc
Western Star 4900EX 4 axle.
4.3/700r4/new frame buildup (YJ)....
http://www.jeepforum.com/forum/f12/swap-offically-underway-324622/
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post #3 of 5 Old 02-03-2013, 11:17 AM Thread Starter
ki4cye
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1990 YJ Wrangler 
 
Join Date: Aug 2009
Location: Moultrie
Posts: 311
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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post #4 of 5 Old 02-03-2013, 03:10 PM
leftlanetruckin
XJ on 37's
 
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1998 XJ Cherokee 
 
Join Date: Jul 2006
Location: missouri via blackpool,lancs.
Posts: 10,625
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.
2003 Range Rover HSE, 4.4 Quad Cam.
1998 Range Rover with a 6.0 LSx
1994 YJ, 4.3/700R4/OME SOA, etc
Western Star 4900EX 4 axle.
4.3/700r4/new frame buildup (YJ)....
http://www.jeepforum.com/forum/showthread.php?t=324622
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post #5 of 5 Old 02-03-2013, 05:02 PM Thread Starter
ki4cye
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1990 YJ Wrangler 
 
Join Date: Aug 2009
Location: Moultrie
Posts: 311
Thanks for the info. Hope to be going to get one friday
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