42RLE took a dump, upgrades? - JeepForum.com
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post #1 of 11 Old 09-24-2017, 04:09 PM Thread Starter
Speed911
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42RLE took a dump, upgrades?

As the title says - After 100k miles left stranded on the interstae today. When I rebuild I'd like to do whatever I can to improve it. What coolers are recommended? What else can I do to upgrade and keep this from happening again?


-Dane
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post #2 of 11 Old 09-24-2017, 05:05 PM
biffgnar
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There aren't a lot of options out there for internals. Transgo makes a shift kit and if it's open it might be worth doing, but benefits are marginal. Externally a cooler is a very good idea. Many of us just go with static coolers added in front of the radiator. Check B&M. Others add coolers that have fans incorporated with them, which does add other mounting options. Check Derale.
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post #3 of 11 Old 09-24-2017, 05:10 PM
toximus
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ATS sells a beefed up 42RLE with a good warranty that you might be interested in. That's what I'm buying when/if mine dies.

I just installed the PSC cooler bracket with 2 coolers. It fits great! These 2 threads are worth checking out:

http://www.jeepforum.com/forum/f9/pr...ewarm-1340663/
http://www.jeepforum.com/forum/f9/ke...cooler-1260191



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post #4 of 11 Old 09-24-2017, 07:27 PM
JBTJ
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A transmission will last much longer when the fluid it kept clean and cool. So as others have suggested a cooler and an external 10 micron filter will make your transmission very happy.
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post #5 of 11 Old 09-25-2017, 04:22 AM
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Quote:
Originally Posted by toximus View Post
ATS sells a beefed up 42RLE with a good warranty that you might be interested in. That's what I'm buying when/if mine dies.
I do have the Derale cooler, which runs a lot in the summer, but this is good to know. Filed...

Found the link for it, btw.
http://www.atsdiesel.com/ats2/produc...p?p=3069448272


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post #6 of 11 Old 09-26-2017, 08:05 AM Thread Starter
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So I think I'll be going with the Derale filter with temp gauge here:

https://www.summitracing.com/parts/DER-13091

and the PSC cooler that toximus provided here

http://www.pscmotorsports.com/vehicl...al-cooler.html

I'm not sold on the shift kit from transgo yet. I've almost no information on it or how well it works. any suggestions on that?

-Dane
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post #7 of 11 Old 09-26-2017, 08:34 AM
biffgnar
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I'm not sold on the shift kit from transgo yet. I've almost no information on it or how well it works. any suggestions on that?
You don't see a lot about it because it requires people to take apart the transmission to install. So it's not an easy add on. IIRC the feedback I've seen for those have installed it is that it did help but not in huge fashion. Personally, if my transmission was open I'd probably do it.
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post #8 of 11 Old 09-26-2017, 09:16 AM Thread Starter
Speed911
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Quote:
Originally Posted by biffgnar View Post
You don't see a lot about it because it requires people to take apart the transmission to install. So it's not an easy add on. IIRC the feedback I've seen for those have installed it is that it did help but not in huge fashion. Personally, if my transmission was open I'd probably do it.
Well it's getting a rebuild anyways. So I don't see why not?

Side note - After looking for parts, I can't believe Jeep kept this horrible transmission in the first gen JKs.
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-Dane
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post #9 of 11 Old 09-26-2017, 11:03 AM
b00mb00m
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Just for my edification, did your transmission give you any signs that it was failing? What burnt up you think, solenoids? Valve body?
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post #10 of 11 Old 09-26-2017, 12:47 PM
JBTJ
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Originally Posted by Speed911 View Post
So I think I'll be going with the Derale filter with temp gauge here:

https://www.summitracing.com/parts/DER-13091

and the PSC cooler that toximus provided here

http://www.pscmotorsports.com/vehicl...al-cooler.html

I'm not sold on the shift kit from transgo yet. I've almost no information on it or how well it works. any suggestions on that?
Good external filter kit. But go with the NAPA 1269 filter as it is 10 micron compared to that 20 micron filter in the kit. I change mine about every 8k miles. When I cut it open, you can see all the crap it catches.
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post #11 of 11 Old 09-26-2017, 01:56 PM
mukluk
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Would this be an inappropriate time to suggest upgrading to a manual trans?

Sorry, couldn't help myself... carry on.

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