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General Forums => The Mess Hall => Topic started by: stan98tj on November 20, 2014, 09:37:07 PM
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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?
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Talked to Advanced Adaptors today and sounds like the Rubi case is direct bolt in with my transmission. I'll need a new driveshaft.
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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.
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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
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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.
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You'll have a 50:1 crawl ratio in first gear with an automatic. Should work very well on rough trails.
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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.
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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.