Author Topic: Swapping in rubicon case?  (Read 550 times)

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Offline stan98tj

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Swapping in rubicon case?
« on: November 20, 2014, 09:37:07 PM »
I have the 3spd auto. Anyone know of swapping in a rubicon 241 is at all possible? Would it be more or less direct swap or would there be any difficult wiring?
98 TJ 35"Maxxis Trep.Old Man Emu 2.5""+1"BL,IronMan Fab control arms,4.56gears,Ford 8.8+ARB,Currie/IronMan steering, WARN VR10,HP D30 sleeved+ RCV,Body Armor Rock Rails WISHLIST:TDi.Girlfriend hates it :) If you can read this don't flip me over i dont have any $$ left to fix it

Offline stan98tj

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Re: Swapping in rubicon case?
« Reply #1 on: November 21, 2014, 04:25:13 PM »
Talked to Advanced Adaptors today and sounds like the Rubi case is direct bolt in with my transmission. I'll need a new driveshaft.
98 TJ 35"Maxxis Trep.Old Man Emu 2.5""+1"BL,IronMan Fab control arms,4.56gears,Ford 8.8+ARB,Currie/IronMan steering, WARN VR10,HP D30 sleeved+ RCV,Body Armor Rock Rails WISHLIST:TDi.Girlfriend hates it :) If you can read this don't flip me over i dont have any $$ left to fix it

Offline VA_YJ

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Re: Swapping in rubicon case?
« Reply #2 on: November 25, 2014, 03:53:32 PM »
The 241OR is larger than the 231J.  If you have a 1" or more body lift, no problem.  Otherwise you might need to "adjust" your floor panel for clearance with a 5 lb sheet metal adjustment tool.

Another possible concern is that the Rubicons have a 4.0 which has the 23 spline transmission output. The 2.5 liter 5 speeds use a 21 spline output.  You need to make sure your three speed transmission has the 23 spline output - pretty sure it does.
95 YJ, 31 BFG ATs, 4.0 TB & spacer, Banks header, DynoMax CAT back, 19# inj, AEM CAI, 20 gal mod, Optima yellow
98 TJ, 35 BFG Krawlers, 4.0 liter, ax15, atlas 5:1, armor, Super 88 (under construction)
96 XJ Cheep Cherokee, 33s, 4.0 liter, AW4, future project
89 Waggy, 360 V8 727 dana 44s, it runs

Offline VA_YJ

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Re: Swapping in rubicon case?
« Reply #3 on: November 25, 2014, 09:35:29 PM »
The guys at AA are the experts, but I did a quick double check.  You should have a 23 spline transmission output.  You may need an extended seal to keep the juice in the slush box.  AA should be able to tell you.

30rh - 1997-2002
3 speed automatic
23 spline output
Ratios:
1st - 2.74
2nd - 1.54
3rd - 1.00
Rev - 2.20
95 YJ, 31 BFG ATs, 4.0 TB & spacer, Banks header, DynoMax CAT back, 19# inj, AEM CAI, 20 gal mod, Optima yellow
98 TJ, 35 BFG Krawlers, 4.0 liter, ax15, atlas 5:1, armor, Super 88 (under construction)
96 XJ Cheep Cherokee, 33s, 4.0 liter, AW4, future project
89 Waggy, 360 V8 727 dana 44s, it runs

Offline stan98tj

  • Empty Wallet Wheeling Since 2007®
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Re: Swapping in rubicon case?
« Reply #4 on: November 25, 2014, 09:46:57 PM »
The guys at AA are the experts, but I did a quick double check.  You should have a 23 spline transmission output.  You may need an extended seal to keep the juice in the slush box.  AA should be able to tell you.

30rh - 1997-2002
3 speed automatic
23 spline output
Ratios:
1st - 2.74
2nd - 1.54
3rd - 1.00
Rev - 2.20
Yeah ill confirm with them right before i purchase. But i think this will work out well. Pretty excited to see how that 4:1 will turn out. I have a 1" BL now.
98 TJ 35"Maxxis Trep.Old Man Emu 2.5""+1"BL,IronMan Fab control arms,4.56gears,Ford 8.8+ARB,Currie/IronMan steering, WARN VR10,HP D30 sleeved+ RCV,Body Armor Rock Rails WISHLIST:TDi.Girlfriend hates it :) If you can read this don't flip me over i dont have any $$ left to fix it

Offline VA_YJ

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Re: Swapping in rubicon case?
« Reply #5 on: November 26, 2014, 11:40:18 AM »
You'll have a 50:1 crawl ratio in first gear with an automatic.  Should work very well on rough trails.
95 YJ, 31 BFG ATs, 4.0 TB & spacer, Banks header, DynoMax CAT back, 19# inj, AEM CAI, 20 gal mod, Optima yellow
98 TJ, 35 BFG Krawlers, 4.0 liter, ax15, atlas 5:1, armor, Super 88 (under construction)
96 XJ Cheep Cherokee, 33s, 4.0 liter, AW4, future project
89 Waggy, 360 V8 727 dana 44s, it runs

Offline jagular7

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Re: Swapping in rubicon case?
« Reply #6 on: November 26, 2014, 04:11:25 PM »
It'll bolt right up to trans, even the shifter mechanism will bolt up stock. For the rear ds, check out your extended local CL. I see them from time to time on my semi-local CL. However, be best to get a cv yoke and put a cv joint on the output of the rear ds. Check out rubicon owners forum for what they've experienced. Enjoy the crawl.

I just picked up a tera low with SYE 231 case for my 97 2.5l/auto....yes, 23 spline output.
Jagular7
97 SE - Rubbered and locked for fun
94 SE - stock, collecting parts for 37s

Offline stan98tj

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Re: Swapping in rubicon case?
« Reply #7 on: November 26, 2014, 05:21:48 PM »
It'll bolt right up to trans, even the shifter mechanism will bolt up stock. For the rear ds, check out your extended local CL. I see them from time to time on my semi-local CL. However, be best to get a cv yoke and put a cv joint on the output of the rear ds. Check out rubicon owners forum for what they've experienced. Enjoy the crawl.

I just picked up a tera low with SYE 231 case for my 97 2.5l/auto....yes, 23 spline output.

what gears/tires are your running with that auto? Im 4.56 with my 33s and i'd like to move up to 35s. I did the grimjeeper chart and it seemed fine. Haven't been able to see any real world reports though.
98 TJ 35"Maxxis Trep.Old Man Emu 2.5""+1"BL,IronMan Fab control arms,4.56gears,Ford 8.8+ARB,Currie/IronMan steering, WARN VR10,HP D30 sleeved+ RCV,Body Armor Rock Rails WISHLIST:TDi.Girlfriend hates it :) If you can read this don't flip me over i dont have any $$ left to fix it