Drivetrain Swap - JeepForum.com

 
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post #1 of 9 Old 03-11-2012, 06:19 PM Thread Starter
YJ43
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1995 YJ Wrangler 
 
Join Date: Apr 2007
Location: Chicago, IL
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Drivetrain Swap

Hello,

I'm in the process of setting in the engine/trans/transfer case to find the exact location to weld the motor mounts (going from I-4 to I-6). I have an AW-4 and 231 TC and one thing that I noticed when setting everything in is that the drive shaft does not appear to line up exactly with the output of the TC. Is this a problem? Rear axle is a Ford 8.8 and I have an SYE and CV drive shaft.

I didn't notice it much before and it's definitely not an extreme angle or anything, but wasn't sure when I set everything in if I need to adjust the tranny mount to get it to point more at the yoke of the 8.8. I'm assuming I don't because of the CV but wanted to make sure before I have everything welded and bolted in place.

Thanks!


1995 YJ: 4.0L I-6 and AW-4 trans; CJ front clip; SOA front, 4-link in rear; 8.8 rear w/ Detroit locker; 4.56 gears; TJ front shafts; SYE; 1" Body lift; JB4x4 hi-steer; Ford Taurus fan; B&M Hi-Tek trans cooler; 35" Procomp MT on aluminum wheels
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post #2 of 9 Old 03-11-2012, 08:28 PM
mrmonkey
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1993 YJ Wrangler 
 
Join Date: Oct 2011
Location: South Jordan
Posts: 76
I'm actually glad to see I wasn't the only one. Mine was about 1/2" off... is that what you're finding? I just went through the same swap.
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post #3 of 9 Old 03-11-2012, 09:02 PM Thread Starter
YJ43
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1995 YJ Wrangler 
 
Join Date: Apr 2007
Location: Chicago, IL
Posts: 145
Yep, it's not off by much, just due to the offset of the yoke on the 8.8.

1995 YJ: 4.0L I-6 and AW-4 trans; CJ front clip; SOA front, 4-link in rear; 8.8 rear w/ Detroit locker; 4.56 gears; TJ front shafts; SYE; 1" Body lift; JB4x4 hi-steer; Ford Taurus fan; B&M Hi-Tek trans cooler; 35" Procomp MT on aluminum wheels
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post #4 of 9 Old 03-11-2012, 10:25 PM
Flajeeper1
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1987 YJ Wrangler 
 
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Location: Lakeland, FL
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Should not an issue. The pinion is offset by approx. 2-3/16" to the right of center. The Dana 35 is approx. 3/4". I installed an 8.8 in my YJ and have had no problems.
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post #5 of 9 Old 03-12-2012, 05:24 AM Thread Starter
YJ43
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1995 YJ Wrangler 
 
Join Date: Apr 2007
Location: Chicago, IL
Posts: 145
Cool, appreciate everyone's response. The PO installed the 8.8, and this is my first engine/trans swap. I figured it wasnt a problem but wanted to Check Didn't think about it or even notice until I had everything lined up.

1995 YJ: 4.0L I-6 and AW-4 trans; CJ front clip; SOA front, 4-link in rear; 8.8 rear w/ Detroit locker; 4.56 gears; TJ front shafts; SYE; 1" Body lift; JB4x4 hi-steer; Ford Taurus fan; B&M Hi-Tek trans cooler; 35" Procomp MT on aluminum wheels
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post #6 of 9 Old 03-12-2012, 07:14 AM
Sprungover
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The CV shaft will easily handle the offset of the 8.8
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post #7 of 9 Old 03-12-2012, 07:39 PM Thread Starter
YJ43
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1995 YJ Wrangler 
 
Join Date: Apr 2007
Location: Chicago, IL
Posts: 145
Great, thanks for confirming!

1995 YJ: 4.0L I-6 and AW-4 trans; CJ front clip; SOA front, 4-link in rear; 8.8 rear w/ Detroit locker; 4.56 gears; TJ front shafts; SYE; 1" Body lift; JB4x4 hi-steer; Ford Taurus fan; B&M Hi-Tek trans cooler; 35" Procomp MT on aluminum wheels
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post #8 of 9 Old 10-07-2013, 08:02 PM
fishadventure
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1991 YJ Wrangler 
 
Join Date: Jul 2013
Location: Morrisville
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Related, but yet unrelated question: How did you locate your motor mounts? Mocking it up in place or measuring the offsets?
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post #9 of 9 Old 10-09-2013, 03:51 AM Thread Starter
YJ43
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1995 YJ Wrangler 
 
Join Date: Apr 2007
Location: Chicago, IL
Posts: 145
I mocked it up in place. I had motor/trans/tc lifted and aligned where everything fit best. I was going with the ford Taurus fan so I pushed the engine fairly close to the firewall. Not too close but just tried to maximize space for fan (it's still tight though). Made sure drive line was lined up and had someone burn the mounts in.

1995 YJ: 4.0L I-6 and AW-4 trans; CJ front clip; SOA front, 4-link in rear; 8.8 rear w/ Detroit locker; 4.56 gears; TJ front shafts; SYE; 1" Body lift; JB4x4 hi-steer; Ford Taurus fan; B&M Hi-Tek trans cooler; 35" Procomp MT on aluminum wheels
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