yotehunter
Viper Owner
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What tranny fluid are you guys using in the gen I tranny. My manual says Dextron II but when I search I find ATF and 75-85 gear lube.
Tranny fluid
- Thread starter yotehunter
- Start date
For what it's worth, I have a tranny out of a gen 2 (2000 I was told) behind a 5.7 Hemi in a 67 Dart and I'm running ATF with good results so far. ATF is what came out of it, so that's what I put back in as opposed to trying to flush it out and change to something else. Much easier to shift in cold weather than the heavy stuff in my gen 3, though after a few miles it warms up and starts to feel more normal. It's like stirring syrup shifting when you first fire it up under 30 degrees.
Ron
Enthusiast
You can not use gear lube, Mopar synthetic / Castrol Syntorq or not, with the early T-56's. Paper lined syncro's in the early boxes do not like it.
Stick with ATF+4, an approved replacement for Dexron II
Stick with ATF+4, an approved replacement for Dexron II
yotehunter
Viper Owner
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Thank You ATF 4 it is
Fatboy 18
Enthusiast
AMSOIL, no other additives needed. 
I've read multiple things regarding the synchro material on the early transmissions. Some say that all early T56's got paper, others say that only the Vette/GM ones did and that all Vipers are carbon. Anyone torn an old one down to confrim either way?
mmcc269
Enthusiast
I've had two Gen 1s been using ATF+4... It's what you want.
EllowViper
Enthusiast
I'm with FatBoy...well I'm not WITH FatBoy, I just agree w/ AMSOIL, no other additives needed....
Darth Menace
Enthusiast
I use Amsoil as well. No complaints
GTSHolgi
Viper Owner
Mopar/Castrol Syntorq for me (to comply with the sticker on my gear box)...
EllowViper
Enthusiast
AKA....AMSOIL. Carries the MOPAR or I should say cross-references to the MOPOR/SYNTORQ part number. That's how I discovered it.
Ron
Enthusiast
Regardless, MOPAR/SYNTORQ is not compatible with earlier GENI T-56's
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GTSHolgi
Viper Owner
Do you mean it is the same? Or do you mean that it fulfills the specs of the Castrol Syntorq? BTW: Which exact AMSOIL product are you referring to?
EllowViper
Enthusiast
Just grabbed a quart off the shelf: Off the rear label: "Replaces Chrysler part # 4874459 (Chrysler specification # MS-9070)" so I went to Amazon and looked up that Chrysler part number " OEM Mopar 4874459 Gear Lube Synthetic Manual Transmission Fluid SAE 75W85 NV4500 (MS-9070)(1 Quart/32 Ounces) $31.53 per qt.
Here's the name of the AMSOIL product: AMSOIL Synthetic Manual Transmission & Transaxle Gear Lube SAE 75W-90 API GL-4. About $15 a qt
Here's the name of the AMSOIL product: AMSOIL Synthetic Manual Transmission & Transaxle Gear Lube SAE 75W-90 API GL-4. About $15 a qt
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EllowViper
Enthusiast
Darth Menace
Enthusiast
That's what this welfare boy has in his transmission
GTSHolgi
Viper Owner
I checked for availability in Germany and found only one shop so far. Unfortunately, they sell it for 29,-€ per quart! So another "liquid Gold" ;-)
EllowViper
Enthusiast
I have a 50 euro and change clipped to my office wall…will that help? Along with some Bahraini dollars, Omani whatevers, Yemenese somethingoranother, and British pounds.
AZTVR
Enthusiast
This is a very confusing thread, because no one is states the model year which appears to be very important for the fluid recommendation for the Gen 1.
I like the technical discussion in the following thread where Ron and Steve discuss the issue with what appears to be direct knowledge of the reasons why to use one type vs another.
http://forums.viperclub.org/threads/651919-ATF-4-or-Synthetic-manual-fluid-for-98-GTS?
I like the technical discussion in the following thread where Ron and Steve discuss the issue with what appears to be direct knowledge of the reasons why to use one type vs another.
http://forums.viperclub.org/threads/651919-ATF-4-or-Synthetic-manual-fluid-for-98-GTS?
EllowViper
Enthusiast
I find the hotter my trans gets, the better it shifts with the AMSOIL. So if you are driving in cooler temps a lot, the AMSOIL will shift harder until it gets up to temp (if it ever does). ATF-4 not the case which is maybe why its used in the newer trans?? WHo really knows. Since you have a GEN-I….try both and see what you like better.
Ron
Enthusiast
AZTVR - Nice use of the search function. I forgot about that thread!
