Is There a cure for the A-604

[V6 Aries wagon]

I have ahd three tranny failures since i put that THING in my wagon
LIMP MODE MUST DIE!!!!!!!!!. What is the name of the 5 speed tranny that came out of the 2.7 stratus r/t ? thanx in advance

[NAJ]

According to "Dealer Connect" a 2.7L was used in Sebring/Stratus(JR) from 2001-2006.
There was 1 manual trans offered thru those years(T-350) with the exception of 2003/04 where there were 2 offered(T-350 and T-850).

DESCRIPTION
This five speed is a constant-mesh manual transaxle. All gear ranges, except reverse, are synchronized. The reverse gear utilizes a brake and blocking ring for shifting ease. The reverse idler gear is supported on a sliding spindle idler shaft. The transaxle case is aluminum with a steel end–plate bearing cover. It is housed in a die-cast aluminum case featuring a two–piece, middle split design (T350 Manual Transaxle).

The T350 transaxle internal components can be serviced only by separating the gear case from the bellhousing case.

CAUTION: The transaxle output shaft is serviced as a unit. No disassembly and reassembly is possible. Damage to the transaxle may result.

TRANSAXLE IDENTIFICATION
The transaxle model, assembly number, and build date are on a metal I.D. tag that is attached to the end cover of the transaxle(Metal I.D. Tag). This information is also shown on a bar code label that is attached to the front of the transaxle(Bar Code Label).

NOTE: Transaxles use various final drive gear ratios in different vehicle applications. Therefore, it is necessary that the correct transaxle assembly number is used when ordering service parts.

GEAR RATIOS
CAUTION: All gears and shafts must not be interchanged with other transaxles; they will not function correctly.

The differential is a conventional arrangement of gears that is supported by tapered roller bearings. The final output gear turns the ring gear and differential assembly, thereby turning the drive axle shafts.

The gear ratios of each transaxle are shown in the following chart. The chart also shows which transaxles are available with the reverse–input shaft brake. This brake allows easier shifting into reverse and helps eliminate reverse gear clash.

GEAR RATIO
1st 3.50
2nd 1.95
3rd 1.36
4th 0.97
5th 0.81
FINAL DRIVE RATIO 3.94
REVERSE BRAKE YES


GEARSHIFT PATTERN
The T350 transaxle shift pattern is a modified H–pattern (T350 Transaxle Shift Pattern). Overdrive fifth and reverse gears are in–line and outboard of the first through fourth gear positions.

LUBRICANT/ADDITIVES
T350 transaxles use Mopar® ATF+4. Hypoid gear lube or engine oil should not be used in this transaxle. Hard shifting effort, bearing, gear, and/or synchronizer failure may occur if incorrect fluid is used.

The addition of any fluids to the transaxle, other than the fluid listed above, is not recommended. An exception to this policy is the use of special dyes to aid in detecting fluid leaks. The use of transmission sealers should be avoided, since they may adversely affect synchronizers and seals.

SEALANTS
The sealant used to seal the transaxle case halves and input bearing is Mopar® Gasket Maker, Loctite® 518, or equivalent. The sealant used for the bearing end plate cover is Mopar® RTV

DESCRIPTION
The NV T850 5-speed transaxle (NV T850 Transaxle) is a constant-mesh manual transaxle that is synchronized in all gear ranges, including reverse.

The transaxle consists of three major sub-assemblies: the input shaft, intermediate shaft, and differential assembly. The transaxle shift system consists of a mechanical shift cover, rails, forks, and cables. The unique design of this shift system provides a higher mechanical advantage, resulting in less friction and lower shift cable loads for smoother, more positive operation.

The NV T850 transaxle is available with the 2.7L Gas engine option. Its gear ratios are as follows:

GEAR RATIO
1st 3.65
2nd 2.05
3rd 1.37
4th 0.97
5th 0.76
Reverse 3.47
Final Drive Ratio 3.77


TRANSAXLE IDENTIFICATION
The transaxle model, assembly part number, build date, and final drive ratio (FDR) can be found on a metal tag fastened to the transaxle case on the bellhousing (T850 Transaxle Identification). A barcode label is also glued to the transaxle bellhousing, and it too includes the transaxle part number.

[danristheman]

I had more problems with the A670 3speed. I like the A604 that was in my dodge dynasty had only one problem with it. The limp mode is annoying i took my up to the local tranny guy they fix the problem. I had the car for 5 years no problem with it shifting. I run Lucas tranny fluid it like it a lot.

Dan Rose

[jory]

The only transmission ever made for the 3.3 was the A604. To make your a604 reliable and tough you will have to drop about 2 G's to rebuild it with all the updates etc. One member here by the name of shelbydodgeimp had his a604 built, a quick search found this thread.
BTW I think a 3.3 in an aries wagon is a great idea, they should have done that from the factory!

[V6 Aries wagon]

Quote:

Originally Posted by danristheman I had more problems with the A670 3speed. I like the A604 that was in my dodge dynasty had only one problem with it. The limp mode is annoying i took my up to the local tranny guy they fix the problem. I had the car for 5 years no problem with it shifting. I run Lucas tranny fluid it like it a lot. Dan Rose

There is a performance a-604 made by IPT @ IPT Performance Transmissions Torque Converters and Transmission Parts for Ford, GM, Chrysler, and Import vehicles.
but im not into the whole 2595 (or two for 5000)
when i can get the 2.7 trans @ a yard for 125
bucks, plus the weight difference.

[minivanin]

there has been rumors that a few people have done the swap...yet no evidence has been shown.

if i ever land another 3.3 van, i WILL do the swap, a 3.3 manual would be soooo nice

[pobort]

Quote:

Originally Posted by V6 Aries wagon There is a performance a-604 made by IPT @ IPT Performance Transmissions Torque Converters and Transmission Parts for Ford, GM, Chrysler, and Import vehicles. but im not into the whole 2595 (or two for 5000) when i can get the 2.7 trans @ a yard for 125 bucks, plus the weight difference.

you can get a manual trans for a 2.7 for $125??? I'll take everyone you can find for that price. I can't find one anywhere for under $1000!! what jy are you getting them for that price?

[minivanin]

there is several for under 1000

Car-Part.com--Used Auto Parts Market is your friend, type in 2004 sebring, 2.7 m/t of course

[john doe]

Does any one have a confirmation that this trans will work and that there is a clutch/flywheel that will work with the 3.3? And if it works with the 3.3 will it work with the 3.8?

[pobort]

Quote:

Originally Posted by john doe Does any one have a confirmation that this trans will work and that there is a clutch/flywheel that will work with the 3.3? And if it works with the 3.3 will it work with the 3.8?

3.3 and 3.8 are exact same

i imagine 2.7 flywheel would fit 3.3 and 3.8 however are the crank sensor trigger windows the same and in the same orientation for correct timing?

like i said if he can get these trannies for $125 i'll take everyone.... i got a reply that they are $500 then toss in shipping your over $650. i want them for $125 as stated which i'm sure is not true

btw there will be one bellhousing bolt hole in the wrong location on the 2.7 trans to a 3.3/3.8 but that's easy to fix

[minivanin]

i'd imagine you could have the 2.7 flywheel modified (if necessary) to work on the 3.3

find a way to mount the crank position ring thing to it...

[pobort]

here's what I found so far today. the crank bolt pattern for the 2.7 is the same as the 2.2/2.5 8bolt crank, 3.0, 3.3, 3.2 and 3.8 however i think the diameter is different at least between the 3.0 and 3.3/3.8. they so the question lies in: are the 2.7 crank sensor trigger windows the same size and location as the 3.3/3.8? any idea if the 2.5 mistusu motor came with a manual trans? I'm thinking that flywheel with crank trigger on a 3.0 96+ caravan with stick? i'm looking at a 1998 caravan with bad 670 new caravan with stick

[fwdtransbuilder]

no crank sensor trigger windows are different from 2.7 to 3.3/3.8 s even some 2.7 flex plates "Trigger windows" are different than another 2.7 of diff year.