42RLE Transmission Replacement Research

richardh

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After 170k miles, and some hard wheeling, my transmission has all the problems, and needs to be replaced. I'm removing and replacing the transmission myself, so it's a bench job for a local shop. I have a '05 TJ, stock drive train, SYE, and a 4" lift on 35" tires. I did a bunch of research and this is what I learned:
  • Local reputable shops with 4x4 experience rebuilding. I have to delivery and pickup. Pricing was between $3500 and $5500. They talked about extra clutch plates, and a number of other mods to ensure the transmission would hold together. Essentially a bomb proof high HP capable 42RLE. Westminster Transmission and Orange County Transmission are the shops.
  • $2500 - Reman Transmission - $2082 + $400 for residential shipping. Warranty covers a lifted jeep. They arrange shipping.
  • $2400 - Best Buy Trans - $2295 + $75 residential shipping. Unknown warranty coverage. They arrange shipping.
  • $2680 + Shipping - Bullripper - $2680 + arrange own shipping. Warranty cover applies. You arrange shipping. After speaking with them, it's still unclear if the price of $2680 includes a refundable core or not. Website says yes, guy on phone was unclear after chatting with them. So, this could be $2080 + arrange own shipping.
  • $2500 - Street Smart - $2302 + $200 residential shipping. Warranty does NOT cover lifted jeep. They arrange shipping.
From what I can read, all these various internet suppliers have essentially the same rebuild process, parts reman list, and rebuild kits. Nothing stood out to me that says any particular one stood above the others.

The local suppliers have solid reputations in the 4x4 community, and build King of Hammer trans. What they talked about also focused on bomb proof high power applications. I don't think I need that for an extra $1000 to $3000.

I also found a used local pull out with 90k miles for $1500.

Hopefully, this gives somebody else a bit of a head start.

Based on this research, and how I use my Jeep. I'm either going to roll the dice with a used, or buy one from Best Buy because I've seen others on this forum have decent experience with Best Buy. When I spoke with Best Buy, they seemed to have the clearest idea of their products and processes. I feel much more confident with a used now because R&R'ing the tranny is not at all a hard job given you have the right tools, including a tranny jack.

When I talked to all of the internet providers about warranty, they all hedged and placed a large number of conditions and exceptions into their language. Essentially, I get the impression that the standard of help is that "it broke inside, and is so obvious a build problem that a child could see the problem" as the standard. So, I'm not impressed with any of the warranty talk I heard. Which said to me, my choices are a local bomb proof tranny for lots of money, roll the dice on a junk yard tranny, or roll the dice on a reman tranny. All without warranty, and varying degrees of support. Honestly, these don't feel like a great set of options.
 
I did a similar economic analysis. What I decided was that I (probably) couldn't screw up a rebuild badly enough to make a professional rebuild non-viable, and since the rebuild kit for the 42RLE is ~$250 + a torque converter, I wouldn't rule out that option. Probably need to factor in new solenoids, too. Do you know what the issues are? Are there any hard parts suspected to be broken? That's going to be above and beyond the cost of any rebuild; they're assuming they're only replacing soft parts.

https://www.oregonperformancetransmission.com/category/jeep-42rle-transmission-rebuild-kits.html

You're probably thinking "I can't rebuild an automatic transmission!" but I'm here to tell you that if you have time, patience, good snap ring pliers, and a shitton of paper towels, you absolutely can rebuild your transmission.
 
PO of my Jeep had one put in from Jaspers Transmissions. I messed it up driving in a lake. They honered the warrenty and shipped me a new one w/o any issues. I have no idea what the pricing is, but they were really easy to deal with.
 
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You have an '05 which is very well known to have a serious PCM problem that causes major problems for the 42RLE transmission. I'd bet your PCM is the problem. I'd give a call to @Mark cantrell at www.wranglerfix.com and he'll ask you some questions about your symptoms to hopefully tell you if it's just a PCM problem or if it's more likely the transmission. He's an absolute guru with this problem, really.

In 2003-2004 the 42RLE's TCM (transmission control module) was separate and mounted over above the driver's side wheel well. In 2005 the TCM was integrated into the PCM which causes a heat build-up problem inside the PCM. If it gets bad enough it can blow internally like an M-80 firecracker went off inside. Mark came up with a different model Chrysler PCM that works perfectly in the 05/06 TJs with the 42RLE that won't blow like the OEM PCM can. Installing a used or new factory '05 PCM is not likely a permanent fix.

Hopefully it's your PCM causing transmission problems and not the transmission itself.
 
I'd give a call to @Mark cantrell at www.wranglerfix.com and he'll ask you some questions about your symptoms to hopefully tell you if it's just a PCM problem or if it's more likely the transmission. He's an absolute guru with this problem, really.

I was hoping so also. I already reached out to Mark already, it's not the TCM in this case. It's the abundance of metal shavings in the pan... Slipping... and not staying in overdrive.
PO of my Jeep had one put in from Jaspers Transmissions. I messed it up driving in a lake. They honored the warranty and shipped me a new one w/o any issues. I have no idea what the pricing is, but they were really easy to deal with.

Jasper doesn't appear rebuild the 42RLE anymore, or at least they didn't have any available, and not really willing to offer me one. I called, and they declined to give me a price.
 
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I was hoping so also. I already reached out to Mark already, it's not the TCM in this case. It's the abundance of metal shavings in the pan... Slipping... and not staying in overdrive.


Jasper doesn't appear rebuild the 42RLE anymore, or at least they didn't have any available, and not really willing to offer me one. I called, and they declined to give me a price.
Oh man I'm sorry, that's all bad news. There is one particular transmission shop close by you I'd trust 100% to take care of your 42RLE, it's Westminster Transmission in Westminster, in Orange County. They are truly experts in Jeep transmissions and prep a lot of transmissions for major offroad events like King of the Hammers. I'd call them and ask for Joe, he's a really good guy and extremely helpful. He's helped me several times over the years.
 
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Oh man I'm sorry, that's all bad news. There is one particular transmission shop close by you I'd trust 100% to take care of your 42RLE, it's Westminster Transmission in Westminster, in Orange County. They are truly experts in Jeep transmissions and prep a lot of transmissions for major offroad events like King of the Hammers. I'd call them and ask for Joe, he's a really good guy and extremely helpful. He's helped me several times over the years.

I chatted with Joe at Westminster. His advice was his stage 2 rebuild, which sounds like an bomb proof product. Unfortunately for me, I can't afford the $5500 price tag.
 
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I chatted with Joe at Westminster. His advice was his stage 2 rebuild, which sounds like an bomb proof product. Unfortunately for me, I can't afford the $5500 price tag.

will he sell you that "kit?"

(I may just be asking for my own benefit)
 
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will he sell you that "kit?"

(I may just be asking for my own benefit)

I didn't ask. Honestly, seemed like they have years of experience building transmissions for jeeps that are capable of taking on the roughest trails and races, and that experience is the real secret sauce.
 
I just went through this with all the associated research. 2006 TJ with 145000…..transmission slipping bad, lost reverse, and had a code for the transmission pump.

I got a transmission from Best Buy. Great customer service. Had a rebuilt transmission in about six weeks for $2000 (I believe they were running some kind of promotion). Plus I had it shipped to a business.

I have about 400 miles on the Best Buy transmission and it shifts smooth with no issues.

I’m not necessarily recommending Best Buy…..Just thought I’d share my experience.

And BTW they ship new torque converter bolts and a new dipstick tube seal with the transmission. You have to move over the two sensors and the cooler line fittings from your old transmission.
 
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