2G AWD transmission tail cover

[Beemer92]

Hi. I'm getting ready to purchase a AWD 5 speed transmission from a shop in the Chicago area for around $600. It is a good working transmission, but not sure what year it came out of and how many miles are on it. It does have a broken tail cover. I still have my original in the car as we speak and can swap out the cover. Just wondering if it's worth $600 + tax. Photos are attached.

 

[jdodds]

There is a serial number on the top by where it mounts to the engine. Doesnt matter what year it came out of as long as its from a 2g and has a matching transfer case. Go to jacks transmissions to find out how to tell.

 

[dsmcrazyspiff]

From the looks of the cable bracket I would say that trans is jdm.

 

[twicks69]

That is most definitely a JDM transmission. There is a very high likelyhood that the final drive ratios are different than the USDM transmission and transfer case.

You will need the serial number off the bellhousing to figure out what model it is from. It will be in the form of: "W5M33-2-NPXV" or KW5M33-2-NPXV, etc. The last four letters will vary depending on model and options.

Personally, it is your choice to spend $600 on unknown condition used parts with damage to the transmission and transfer case tail housing (hopefully just the sheet metal sleeve on the end that is replacable).

If you want to know if it is a good deal, find out what the serial numbers are on the transmission. There is the one I listed above, as well as a 17-digit serial code stamped into the bellhousing just below the W5M33 one. The 10th digit should be a letter -- this letter corresponds to a year that it was produced in -- this letter in conjunction with the W5M33 code will give us a clearer picture as to what you are actually purchasing.

As well, the speed sensor is a 1G style, and the bellhousing mounting points look 1G, and the shift shaft is definitely not USDM -- it would likely require a teardown and swap out the shift selector for the USDM one, along with a full inspection and counting of the number of teeth on the front differential ring gear and output pinion shaft.

I can also tell that from the 5th gear cover it is from a 1990-mid 1991 based upon the top angled portion just above the hole in the cover. This means that is has the smaller 5th/Reverse hub and slider assembly associated with the 1990-mid 1991 transmissions that have the small Reverse synchro and the small 5th gear synchro, and aluminum 5th/Rev shift fork.

If you pull off the 5th gear cover, there should be a stamping on it with a part number on the inside -- it will likely be: MD735345.

The late 1G and all 2G 5th gear covers can be installed on the earlier transmission case, but the early 1G covers cannot go on the later cases unless you convert to the early 5th gear/Reverse assembly due to the size of the hub and slider assembly as it will hit the cover if the large hub/slider is used with the small cover. There is also a slight difference in oiling passages for the the late 1991-1999 5th gear covers, as they only use one main oil guide vs. the 1990-mid 1991 use two oil guides that run up to the 5th gear assembly.

Either way, this transmission will not fit in a 2G AWD. Thus, making it not worth $600 unless there is a dogbox hiding in that case; which is highly unlikely.

Thanks,

 

[Beemer92]

That is most definitely a JDM transmission. There is a very high likelyhood that the final drive ratios are different than the USDM transmission and transfer case.

You will need the serial number off the bellhousing to figure out what model it is from. It will be in the form of: "W5M33-2-NPXV" or KW5M33-2-NPXV, etc. The last four letters will vary depending on model and options.

Personally, it is your choice to spend $600 on unknown condition used parts with damage to the transmission and transfer case tail housing (hopefully just the sheet metal sleeve on the end that is replacable).

If you want to know if it is a good deal, find out what the serial numbers are on the transmission. There is the one I listed above, as well as a 17-digit serial code stamped into the bellhousing just below the W5M33 one. The 10th digit should be a letter -- this letter corresponds to a year that it was produced in -- this letter in conjunction with the W5M33 code will give us a clearer picture as to what you are actually purchasing.

As well, the speed sensor is a 1G style, and the bellhousing mounting points look 1G, and the shift shaft is definitely not USDM -- it would likely require a teardown and swap out the shift selector for the USDM one, along with a full inspection and counting of the number of teeth on the front differential ring gear and output pinion shaft.

I can also tell that from the 5th gear cover it is from a 1990-mid 1991 based upon the top angled portion just above the hole in the cover. This means that is has the smaller 5th/Reverse hub and slider assembly associated with the 1990-mid 1991 transmissions that have the small Reverse synchro and the small 5th gear synchro, and aluminum 5th/Rev shift fork.

If you pull off the 5th gear cover, there should be a stamping on it with a part number on the inside -- it will likely be: MD735345.

The late 1G and all 2G 5th gear covers can be installed on the earlier transmission case, but the early 1G covers cannot go on the later cases unless you convert to the early 5th gear/Reverse assembly due to the size of the hub and slider assembly as it will hit the cover if the large hub/slider is used with the small cover. There is also a slight difference in oiling passages for the the late 1991-1999 5th gear covers, as they only use one main oil guide vs. the 1990-mid 1991 use two oil guides that run up to the 5th gear assembly.

Either way, this transmission will not fit in a 2G AWD. Thus, making it not worth $600 unless there is a dogbox hiding in that case; which is highly unlikely.

Thanks,[/QUOT

Looks like you know your transmissions inside and out. I just got an email from the shop who is selling it. Here's the message.

The trans is oem not rebuilt. And all our engines and trans usually come with 40-70k miles.

I'll send them another email asking for the serial number. But from what you are telling me is that it is not a 2G transmission. Therefore it will not fit. If it's oem, then dogbox doesn't exist. Just my luck. Thanks for the help. I'll keep you in the loop.

Josh

 

[FLASH1970]

Looks like you know your transmissions inside and out.

Josh

He does and that's why he's building mine.

 

[twicks69]

Shops will say anything to make a sale and make a buck.

That is the problem with JDM parts; they think that it is all direct bolt-in no matter what it came out of because it looks similar.

Get the two serial codes, and have the 5th gear cover taken off for the part number on the inside of the 5th gear cover casting for confirmation.

Just from the shift selector and the speed sensor alone, you can tell that it isn't made for a 2G directly as a bolt-in.

 

[Beemer92]

Just got a response back from the shop in Chitown boys and girls. Here's the message:

Hey Josh I got the serial number.

Its KW5MM332MUZT

Did some research on Dsmtuner .

W5M33-2-MUZT 97-99 Eclipse AWD 5spd turbo mfg 7/96-end

Let me know. Josh

 

[twicks69]

If that's the case, what the hell was it retrofitted onto????

 

[Beemer92]

If that's the case, what the hell was it retrofitted onto????

No effing clue Tim. Will it work in my Talon? Or do I have to go hunting again??

1. Gear ratio information - important !!!
W5M33 designates the 2nd generation Eclipse AWD manual Transmission. There are two variants, W5M33-2-NPZT used during 1995-1996 and W5M33-2-MUZT that are found in the 1997-1999 models. They're pretty much the same design but with a different front differential gear ratio. If you mix match your transmission and transfer case you'll be constantly putting load on your center diff spider gears and the viscous coupling. So it's important to use the correct year(95-96 or 97-99) transfer case for the transmission type you are using. This applies to both the Eclipse and Eagle Talon.

Gear Ratio Comparison between the early and late 2G 5speed AWD DSM Reduction ratio
(gear tooth count) Primary Front differential Transfer case Rear differential
95-96 1.275 (37/29) 3.866 (58/15) 1.090 (24/22) 3.545 (39/11)
97-99 1.275 (37/29) 3.800 (57/15) 1.074 (29/27) 3.545 (39/11)

[Front differential] is the reduction ratio between the output shaft and the front axle. [T-case x Rear-diff] is the reduction ratio between the output shaft and the rear axle. The above two must be equal for the front and rear wheels to have the same spinning rate.

Found this on Eclipse 5-speed Swap According to this a 2Ga and a 2Gb front diff gear ratio are slightly different. Should I chance it, or just get mine redone??

 

[twicks69]

If it is actually an MUZT suffix, it still requires a 97-99 transfer case, or a complete disassembly to swap out the 1997-1999 57-tooth ring gear for a 58-tooth ring gear from a 1991-1996.

I would pass on that one -- there is evident damage, and is questionable and at a high price for unknown condition parts.

 

[Beemer92]

If it is actually an MUZT suffix, it still requires a 97-99 transfer case, or a complete disassembly to swap out the 1997-1999 57-tooth ring gear for a 58-tooth ring gear from a 1991-1996.

I would pass on that one -- there is evident damage, and is questionable and at a high price for unknown condition parts.

. I was thinking the same thing Tim. I my transfer case aint broke, why get a new one. I still have no idea why mitsu changed the trans halfway thru the 2G style. My only option is to get mine redone. Thanks for all the help.

 

[twicks69]

Anytime man!

 

[gingerbredman00]

NO FRUGGIN WAY!!!
I just payed 250 for a transmission, transfer case, 6bolt AWD flywheel and a drivers side half shaft!
please keep searching, you'll find a steal eventually.

 

[Beemer92]

NO FRUGGIN WAY!!!
I just payed 250 for a transmission, transfer case, 6bolt AWD flywheel and a drivers side half shaft!
please keep searching, you'll find a steal eventually.

Very true. Unfortuately I don't think time is on my side on this one. Running a TSI AWD/GSX 5 speed with no 1st gear can't be healthyfor the transmission. Or can I get away with it for now if driving locally and not screwing with the hondas and nissans??