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Old 08-20-2013, 12:27 AM   #1
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tj rubicon tc

Is a tj rubicon tc a strait swap into a yj?
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Complete rebuild axle/engine/everything swap in progress: Building stock width 44's with 302 from 01 Explorer. Motor has GT40p heads, Cobra Intake, and truck cam. Running A9L EEC IV stand alone engine from late 80's-90's Mustang GT. Big Bearing NP435 married to NP205.
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Old 08-20-2013, 10:43 PM   #2
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No it isn't. The mounting points are different.

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Old 08-20-2013, 11:41 PM   #3
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No


The 231 input shaft sticks out 1-1/8", the 241 sticks out 1-3/8", so the seal should be fine. the front yoke on the 231 sets back 1-7/16" from the face of the tc.(where it mounts to the tranny) . the 241 sets back 2". so the front ds will be longer by 9/16". the rear 231 yoke is 16-5/16" from the face. the 241 is 15-13/16". so the rear ds will be 1/2" longer

you can tap the weep hole in the tranny for a 3/8" nc bolt and put a bead of silicone around the tc to tranny mounting surface. Or plug it another way.

You may have to to some clearancing if you are using the stock tranny mount, It will hit the 241 in a spot. Or you can space it down a touch.
Someone that I wheel with did this same swap
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2.5/ax5/ 231-300 doubler, Dana 60 front( 4ws springless double arm, tierod behind axle, 4ws springless driver side arm, hydro assist) 14bff , detroit, discs, pinion guard) Warn x8000i w/synthetic line, York OBA, Cage, Flat belly, miniboatside, tube fenders,3 link front w/ 14in Kings,4 link rear with TJ coils and Bilstiens, comp cut, 108WB, H1 Double beadlocks, 39.5 IROKs
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Old 08-21-2013, 12:01 AM   #4
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Norcal Chris got to it first so I'll chime in on some more basic things. If you have your stock axles, then you also have to worry about the nv241or not having the vacuum switch to engage your front axle. Also, the shift arm on the 231 faces down and the 241 faces up, so the linkage would have to be fabbed up a bit.
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Build Thread 1989 YJ, (Soon to come: TBI 350, 4l60) np231 sye/wide chain/6 pinion planetary, D30 ARB & Ford 8.8 ARB 4.56, 31" rollers for now, bds 3.5" springs, 1" Boom Shackles.
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Old 08-21-2013, 09:11 AM   #5
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Well I have solid axle swap in. Can't remember how long it has been since I had a stock length driveshaft front or back. I guess I would just need the 4wd bracket to fit for the shifter. not bad I guess if I find one cheap enough. I should be able to sell my tc pretty easy. I recently rebuilt it and if course have an sye.
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Complete rebuild axle/engine/everything swap in progress: Building stock width 44's with 302 from 01 Explorer. Motor has GT40p heads, Cobra Intake, and truck cam. Running A9L EEC IV stand alone engine from late 80's-90's Mustang GT. Big Bearing NP435 married to NP205.
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Old 08-22-2013, 01:05 AM   #6
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Quote:
Originally Posted by OverkillYJ View Post
Well I have solid axle swap in. Can't remember how long it has been since I had a stock length driveshaft front or back. I guess I would just need the 4wd bracket to fit for the shifter. not bad I guess if I find one cheap enough. I should be able to sell my tc pretty easy. I recently rebuilt it and if course have an sye.
Sounds good, clean up the tc and sell it, I hear the 4:1 low is well worth the swap. As for drive shafts, cjtatton on ebay has made me some really nice driveshafts in custom lengths. I'm going to have him make me more when I do my engine swap. It's best to give him a call 1-801-685-0056 and his name is curtis.
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Build Thread 1989 YJ, (Soon to come: TBI 350, 4l60) np231 sye/wide chain/6 pinion planetary, D30 ARB & Ford 8.8 ARB 4.56, 31" rollers for now, bds 3.5" springs, 1" Boom Shackles.
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Old 08-22-2013, 07:49 AM   #7
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Quote:
Originally Posted by c5wagner View Post
Sounds good, clean up the tc and sell it, I hear the 4:1 low is well worth the swap. As for drive shafts, cjtatton on ebay has made me some really nice driveshafts in custom lengths. I'm going to have him make me more when I do my engine swap. It's best to give him a call 1-801-685-0056 and his name is curtis.
Yeah I had one of his shafts.

Is there a way to reduce the gear in the 231? Sounds like it may be less hassle to just do that.
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Complete rebuild axle/engine/everything swap in progress: Building stock width 44's with 302 from 01 Explorer. Motor has GT40p heads, Cobra Intake, and truck cam. Running A9L EEC IV stand alone engine from late 80's-90's Mustang GT. Big Bearing NP435 married to NP205.
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Old 08-22-2013, 11:43 AM   #8
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Teralow kit. It isnt as strong, is noisier, and more expensive. New they are 1100 or so.

Plus I know you like mud, and the teralow cant be spun high because the planetaries will blow up. The welds come off on the planetary housing. I t ook my old one apart and there are a bunch of small gears in there... cant beleive it survives.
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2.5/ax5/ 231-300 doubler, Dana 60 front( 4ws springless double arm, tierod behind axle, 4ws springless driver side arm, hydro assist) 14bff , detroit, discs, pinion guard) Warn x8000i w/synthetic line, York OBA, Cage, Flat belly, miniboatside, tube fenders,3 link front w/ 14in Kings,4 link rear with TJ coils and Bilstiens, comp cut, 108WB, H1 Double beadlocks, 39.5 IROKs
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Old 08-22-2013, 10:22 PM   #9
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Originally Posted by Norcal_Chris View Post
Teralow kit. It isnt as strong, is noisier, and more expensive. New they are 1100 or so.

Plus I know you like mud, and the teralow cant be spun high because the planetaries will blow up. The welds come off on the planetary housing. I t ook my old one apart and there are a bunch of small gears in there... cant beleive it survives.
Ya, I know a guy who got the terelow kit and it was crap. I really want an atlas so I can have twin sticks.

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Build Thread 1989 YJ, (Soon to come: TBI 350, 4l60) np231 sye/wide chain/6 pinion planetary, D30 ARB & Ford 8.8 ARB 4.56, 31" rollers for now, bds 3.5" springs, 1" Boom Shackles.
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