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Okay, so I understand you guys are more gassers than diesel heads, I can respect that so this is my second post, with the 2008 jku, what is an easy transmission to swap that's happy with the computer? Will a chevy one work or? I'm more or less looking for something with better driveability than the 4th by 40 and never sweet eclipse transmission thats in it currently that has no power, as long as I can go at least 85 at top end I'm good, I hardly go over 70 unless I'm long road tripping, manual is desired but I've heard through the grapevine vine the computers are different for the 6speed jku standard and the 4speed auto jku
 

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Not sure that I have seen anyone swap trans behind 3.8 or 3.6.

Before going LS/6L80 I did however let Mike at OSTdyno.com work his magic on the TCM for the 580 behind my 3.6 and was very impressed what he was able to do to make 40’s and 4.88’s work behind the buzzbox 6 cyl
 

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Not sure that I have seen anyone swap trans behind 3.8 or 3.6.

Before going LS/6L80 I did however let Mike at OSTdyno.com work his magic on the TCM for the 580 behind my 3.6 and was very impressed what he was able to do to make 40’s and 4.88’s work behind the buzzbox 6 cyl

man.

THAT would be a great, interesting and popular thread were you ( or anyone) to document such TCM work in a Modified thread w/ info, details and images!

Do It! :bounce:



 

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You can swap over to the stock manual but yes you will have to swap over the TCM as well. I know someone who has done a manual to auto conversion for the 3.8 that way.

As far as swapping in a different trans like the A580 or a GM one, I have never seen that happen but if you could make it work, you will be a Jeep god.
 

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You can swap over to the stock manual but yes you will have to swap over the TCM as well. I know someone who has done a manual to auto conversion for the 3.8 that way.

As far as swapping in a different trans like the A580 or a GM one, I have never seen that happen but if you could make it work, you will be a Jeep god.
A gm would be the most ideal but I'll do some more research, maybe do the dual computer system but at that point I might as well do the engine too I might settle for a manual transmission and just buy another computer, are the plugs different auto to standard?
 

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A gm would be the most ideal but I'll do some more research, maybe do the dual computer system but at that point I might as well do the engine too I might settle for a manual transmission and just buy another computer, are the plugs different auto to standard?
I honestly dont remember all the details. I think he had to get some different harnesses and I remember one of the computers needing a reflash but if you are dead set on a swap, I think this is the only really feasible one.
 

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Okay, so I understand you guys are more gassers than diesel heads, I can respect that so this is my second post, with the 2008 jku, what is an easy transmission to swap that's happy with the computer? Will a chevy one work or? I'm more or less looking for something with better driveability than the 4th by 40 and never sweet eclipse transmission thats in it currently that has no power, as long as I can go at least 85 at top end I'm good, I hardly go over 70 unless I'm long road tripping, manual is desired but I've heard through the grapevine vine the computers are different for the 6speed jku standard and the 4speed auto jku
So i have a 2008 JKU with the 6speed, i can be a perfect donor some someone who wants to swap an auto. I can help
 

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There is a thread on here somewhere that has all the relative info but I think it was in the opposite direction (manual to auto) Would still have valuable info on what is needed if not the actual part data.

Sent from my SAMSUNG-SM-G891A using Tapatalk
 

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Looking to swap

So i have a 2008 JKU with the 6speed, i can be a perfect donor some someone who wants to swap an auto. I can help
You still looking to swap the 6speed for an auto? Hate my auto would gladly be the donor for someone who wants to switch.
 
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