42RLE transmission failure - Page 2 - JeepForum.com

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post #16 of 38 Old 03-08-2013, 06:22 PM
Best4x4
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33's will not blow up a 42RLE. Ran them on my 05 Rubicon with zero issues related to the tire size. My 05 LJ has 32inch tires and 3.73 gears vs my Rubicon's 4.10's and I can cruise down the freeway at 85MPH if I wanted to. I live in TX and although we don't have Pikes Peak we do have some mountains to the west. The TX Hill Country also has plenty of tall hills. TX is not 100% flat lol.

The 42RLE is an okay transmission, but I agree the OD is tall, but flip a switch and problem solved. I haven't had any issues with the actual 42RLE on either Jeep. On the 05 Rubicon all my transmission issues were PCM related, and flexplate related. On the 05 LJ I have had zero issues with the 42RLE.


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post #17 of 38 Old 03-08-2013, 07:02 PM Thread Starter
TxmikeS
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regear

seems like my primary problem is the failure to re gear from 3.73 to 4.88 when I did the lift and the 33's; consensus is I either blew the tran's top gear plates or I have an scenario which is simply incompatible eg stock tran, stock 3.73 gears, 33's, lift.....

so who recommends what re gear system and should I plan for the 35's or leave enough alone
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post #18 of 38 Old 03-08-2013, 07:03 PM Thread Starter
TxmikeS
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thread tran

thread for tran for a grand please.
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post #19 of 38 Old 03-08-2013, 07:09 PM Thread Starter
TxmikeS
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see there

same thing I got from various trans shops as to whether it is blown or working as designed (albeit by me with my upgrades). I just dont like the fact I cannot any longer pass on the highway at above 60. Puts me at a giant disadvantage but what will re gear to 4.88 disadvantage be??? a worse or better thing?? and is the tran blown or not???
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post #20 of 38 Old 03-08-2013, 07:53 PM
Best4x4
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Higher RPM's after a re-gear & less MPG. I ran 33's all day long on my Rubicon and yes I had 4.10 gears, but I now have 32's with 3.73's and both performed around the same. I have zero problems going 75MPH + on the highway. Remember if you didn't swap out the speedo gear you're actually going faster than your speedo is telling you. Use a GPS to get an exact MPH reading. My LJ is 5MPH off.

05 Electric Lime Green LJ with a 4spd Auto, 2.5inch Suspension Lift, OME Shocks, OME Steering Stabilizer, 32inch BFG M/T's on 17inch Moab's using Spidertrax Spacers, UCF Aluminum TC Skid, Novak Cable Shifter, Brown Dog MML, Rokmen 1/2 BL, Banks CAI, Diehard Platinum Marine Battery, JW Speaker 8700 LED Head Lights, Safari Nets, G.E.A.R Overhead Console/G.E.A.R Tailgate Storage, Rugged Ridge XHD Front Bumper, Warn Gas Tank Skid, Mopar Rock Crawler Rear Bumper, Warn XD9000i Winch with Warn Wireless Remote, and a Uniden 880 CB Radio
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post #21 of 38 Old 03-08-2013, 08:16 PM Thread Starter
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The Highway off ramps were actually designed to be bigger and better than any Eastern Mountain ranges and there are actually about 5:1 guns to people here. lol
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post #22 of 38 Old 03-10-2013, 12:35 PM
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Quote:
Originally Posted by TxmikeS View Post
thread for tran for a grand please.
http://www.jeepforum.com/forum/f126/...r-etc-1485052/
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post #23 of 38 Old 03-13-2013, 02:16 PM Thread Starter
TxmikeS
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Auto repair industry is a rip off nightmare

told the pass gear problem is a computer programming issue associated bigger tires and lift BUT
of course "the slipping which is a torque converter spitting up metal grindings" will cost a thousand or 2 to re mediate. What slipping??? what metal grindings??? didn't have any until they told me about it after the gauges they supposedly checked pressure with were removed as well as the pan and all the fluid.

This is how people act ....everything an opportunity to deliver NOTHING but a rip off.
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post #24 of 38 Old 03-13-2013, 03:52 PM
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burnt fluid and engine rpm going up beyond the stall speed of the converter with no associated increase in vehicle speed = blown clutches or a blown torque converter.

'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

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post #25 of 38 Old 04-16-2013, 01:44 PM
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So, is the consensus here that a 4.0L with a 4 speed automatic (42RLE, right) running 33's on 3.73 axles is fine??
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post #26 of 38 Old 04-16-2013, 02:19 PM
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Quote:
Originally Posted by seadoons
So, is the consensus here that a 4.0L with a 4 speed automatic (42RLE, right) running 33's on 3.73 axles is fine??
If your okay with using the OD off switch frequently and treating the transmission as a 3 speed then yea it'll be fine.
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post #27 of 38 Old 04-17-2013, 08:30 AM
rubi513
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Originally Posted by seadoons View Post
So, is the consensus here that a 4.0L with a 4 speed automatic (42RLE, right) running 33's on 3.73 axles is fine??
As long as your happy with it, but gears definitely make a big difference. I had 35s with 4.10 gears. It was like a natural motion to reach over and turn off the overdrive every time I started my jeep. Upgraded to 5.13 gears and could not be happier. The jeep actually feels kind of sporty from a dead stop. Don't get me wrong its no sports car, but it runs so much better than it did.
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post #28 of 38 Old 04-18-2013, 09:11 AM Thread Starter
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So now the transmission shop claims to have "rebuilt" the transmission and changed rear motor seal which did not solve the problem and blamed the TCM which the dealer changed out for 500.00 with no net affect. Now the dealer claims rear motor seal has never been touched as oil pan was NOT removed not the exhaust manifold and the transmission has internal mechanical problems causing the problem. OUT 2000.00 now dealer wants another. What a rip off industry riddled with lies and fraud.

As to gear ration I do not believe Dana 30 front can take 5.13; anyone know????
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post #29 of 38 Old 04-18-2013, 09:30 AM
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4.88 is the lowest for your D30.
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post #30 of 38 Old 04-18-2013, 12:38 PM
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I have an LJ with 33's and stock 3.71 gears, the only thing I have to do is kill the overdrive and she runs fine. As a precaution I did stick a honking great transmission cooler in too (the fluid goes tranny->exterior filter->Trans-cooler->radiator->tranny), NC gets warm.

How do you drive your Jeep, are there many hills? Do you spend a lot of time in slow traffic?

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Doctor Who has died 13 times, is on his 14th regeneration and has a time machine, beat that Jesus.
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