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833 tranny fluid #1576828
02/10/14 08:34 PM
02/10/14 08:34 PM
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IL
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66HEMICORONET Offline OP
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66HEMICORONET  Offline OP
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Anyone have any recommendations as to the type of lube to use in my 4 speed tranny? We've heard some say synthetic and others not. Any opinions?

Re: 833 tranny fluid [Re: 66HEMICORONET] #1576829
02/10/14 08:42 PM
02/10/14 08:42 PM
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Posts: 1
northeast pa usa
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68dartgreg Offline
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68dartgreg  Offline
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northeast pa usa
standard 80w-90 works well. using synthetic oil is to slippery for synchro rings. you need some resistance for them to work properly.

Re: 833 tranny fluid [Re: 68dartgreg] #1576830
02/10/14 08:45 PM
02/10/14 08:45 PM
Joined: Oct 2006
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USA
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b54406barrel Offline
master
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USA
I only had 3 different, 4spd mopars but they all had atf in them.

Re: 833 tranny fluid [Re: b54406barrel] #1576831
02/10/14 09:33 PM
02/10/14 09:33 PM
Joined: Jan 2007
Posts: 2,212
Minnesota
peabodyracing Offline
top fuel
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Posts: 2,212
Minnesota
I've gotten sucked into this debate before. General opinion was they should use ATF. I've always (since the mid 70's) used 80W90 gear oil. Have never had a problem with it, even in cold weather driving, which is where I think the ATF discussion originated from. Purely my own opinion and experience.


Lead, follow or get the hell out of the way
Re: 833 tranny fluid [Re: peabodyracing] #1576832
02/10/14 09:40 PM
02/10/14 09:40 PM
Joined: Jan 2003
Posts: 6,363
Abilene, Texas
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fastmark Offline
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fastmark  Offline
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Abilene, Texas
My uncle worked at a transmission shop in the day and he said that even though mopar recommended ATF for an 833 that would not shift well, it came back to bite them. He rebuild many that had high wear problems from running ATF. I've never had problems with regular 80w-90 weight gear oil.

Re: 833 tranny fluid [Re: 68dartgreg] #1576833
02/10/14 09:41 PM
02/10/14 09:41 PM
Joined: Jan 2003
Posts: 25,618
Rio Linda, CA
John_Kunkel Offline
Too Many Posts
John_Kunkel  Offline
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Rio Linda, CA
Quote:

using synthetic oil is to slippery for synchro rings. you need some resistance for them to work properly.




Myth. You merely need to choose a synthetic that's synchro friendly....I prefer Red Line 75W-90NS; works great in the 833.


The INTERNET, the MISinformation superhighway
Re: 833 tranny fluid [Re: 66HEMICORONET] #1576834
02/10/14 09:48 PM
02/10/14 09:48 PM
Joined: Dec 2007
Posts: 18,153
Mass
DAYCLONA Offline
I Live Here
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Mass
Quote:

Anyone have any recommendations as to the type of lube to use in my 4 speed tranny? We've heard some say synthetic and others not. Any opinions?








80w-90...end of story IMHO

Re: 833 tranny fluid [Re: 66HEMICORONET] #1576835
02/10/14 10:00 PM
02/10/14 10:00 PM
Joined: Dec 2007
Posts: 1,357
central Florida
VL21 Offline
pro stock
VL21  Offline
pro stock

Joined: Dec 2007
Posts: 1,357
central Florida
Waaay back when, I had a '66 Formula S, 4spd. Lived in Vermont.

In the cold of the first winter I had it (used) I would go out to start it and let it warm up.

Push clutch, start engine. Let clutch out, it would stall the engine. Had to rev it up, ease out the clutch.

I checked around, then drained it and put dexron in. End of problem.

I "believe" all the other four speeders that I had were factory filled with dexron.

The 4 gear in my VL21 will have 80/90 if it ever gets on the road, now that I live in Fla.



It takes gasoline to interest me.
Re: 833 tranny fluid [Re: DAYCLONA] #1576836
02/10/14 10:00 PM
02/10/14 10:00 PM
Joined: Aug 2003
Posts: 2,463
Answering the call of the wild
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ThermoQuad Offline
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ThermoQuad  Offline
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Answering the call of the wild
Call Jamie Passon- Passon Performance - you know the 4 and 5 speed guy. He has his own proprietary transmission lubricant for mopar 4 speeds. There is a significant difference between his lubricant and the off the shelf products that many will recommend. btw I torture tested the Passon product and the OFTPs and his by far performed the best.

Re: 833 tranny fluid [Re: DAYCLONA] #1576837
02/10/14 10:01 PM
02/10/14 10:01 PM
Joined: Oct 2006
Posts: 3,054
USA
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b54406barrel Offline
master
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USA
Mostly being a muncie & toploader guy, atf was a surprise to me when I pulled my first one in '71. I talked to the dodge shop foreman & he told me anything else voided the warranty. Guess that's not really an issue anymore........

Re: 833 tranny fluid [Re: b54406barrel] #1576838
02/11/14 02:39 AM
02/11/14 02:39 AM
Joined: Oct 2003
Posts: 3,999
South Park, Pa.
68LAR Offline
master
68LAR  Offline
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South Park, Pa.
I'm the original owner of my car. I've used nothing but ATF in it for 99% of the time. I've tried other stuff, but always went back to Dexron ATF. It works for me, your results may vary.


4 speed street legal. Best time 10.99 @ 124 mph on 93 octane pump gas @ 3926# total weight
Re: 833 tranny fluid [Re: 68LAR] #1576839
02/11/14 10:33 AM
02/11/14 10:33 AM
Joined: Jan 2003
Posts: 21,050
Niles , Ohio
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therocks Offline
oh wait.but hey.lets see.oh yeah.
therocks  Offline
oh wait.but hey.lets see.oh yeah.
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Niles , Ohio
My 65 uses 80w 90.Has since new.Every one Ive had had the same.Ive had my 65 since 69.Drove it in the winter for years and never a problem.Rocky


Chrysler Firepower
Re: 833 tranny fluid [Re: therocks] #1576840
02/11/14 11:41 AM
02/11/14 11:41 AM
Joined: Dec 2004
Posts: 2,362
Wheatfield, NY
Cuda340 Online work
top fuel
Cuda340  Online Work
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Posts: 2,362
Wheatfield, NY
Quote:

My 65 uses 80w 90.Has since new.Every one Ive had had the same.Ive had my 65 since 69.Drove it in the winter for years and never a problem.Rocky




I fully agree with the 80w-90. Also make sure it is GL-4 Rated NOT GL-5. GL-5 has too many friction modifiers in it and will not let the syncro grab the hub enough to slow the gear down. GL-5 is made for rear ends.

Re: 833 tranny fluid [Re: 66HEMICORONET] #1576841
02/11/14 02:41 PM
02/11/14 02:41 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
I Win
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Posts: 43,007
Bend,OR USA
Mopar sent the 4 speed cars out from the factory with both gear oil,80-90 wt. and ATF The deciding factor was where the cars where being sent to be sold, if it was to a dealer who lived in cold country it got ATF, if not cold country they got gear oil. I went to several of the old Mopar drag seminars, they always recommended using ATF in the NP 833 regardless if drag race only or road racing I've used ATF in all my 833 since 1976


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: 833 tranny fluid [Re: ThermoQuad] #1576842
02/11/14 06:50 PM
02/11/14 06:50 PM
Joined: Apr 2011
Posts: 315
Ontario, Canada
RealWing Offline
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Ontario, Canada
Quote:

Call Jamie Passon- Passon Performance - you know the 4 and 5 speed guy. He has his own proprietary transmission lubricant for mopar 4 speeds. There is a significant difference between his lubricant and the off the shelf products that many will recommend. btw I torture tested the Passon product and the OFTPs and his by far performed the best.



For Jamie Passon's new 5 speed tranny, he recommends Lucas Synthetic 75W90. I believe all his testing was done using this lube.
https://www.lucasoil.com/images/medialibrary/TDS10047_Syn-75W-90-GearOil.pdf


1970 Superbird 440-6bbl, auto
1969 Barracuda 340-4bbl, FB Formula S auto
1969 Barracuda 6.1 L Hemi, 5 speed, Convertible
2022 Can Am Spyder RTL
Re: 833 tranny fluid [Re: 66HEMICORONET] #1576843
02/11/14 08:44 PM
02/11/14 08:44 PM
Joined: Jan 2003
Posts: 74,907
U.S.S.A.
JohnRR Offline
I Win
JohnRR  Offline
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Posts: 74,907
U.S.S.A.
I've rebuilt a few 833's that i could clearly tell were ATF , and parted a number of the OD 833's that definitely had ATF , they all had wear on the cluster pins where the roller bearing rode.

Re: 833 tranny fluid [Re: JohnRR] #1576844
02/11/14 09:38 PM
02/11/14 09:38 PM
Joined: Sep 2007
Posts: 14,889
up yours
Supercuda Offline
About to go away
Supercuda  Offline
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Joined: Sep 2007
Posts: 14,889
up yours
80w90


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: 833 tranny fluid [Re: RealWing] #1576845
02/11/14 09:41 PM
02/11/14 09:41 PM
Joined: Jan 2003
Posts: 11,890
Benton, IL.
D
DaveRS23 Offline
Special needs idiot
DaveRS23  Offline
Special needs idiot
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Joined: Jan 2003
Posts: 11,890
Benton, IL.
Quote:

Quote:

Call Jamie Passon- Passon Performance - you know the 4 and 5 speed guy. He has his own proprietary transmission lubricant for mopar 4 speeds. There is a significant difference between his lubricant and the off the shelf products that many will recommend. btw I torture tested the Passon product and the OFTPs and his by far performed the best.



For Jamie Passon's new 5 speed tranny, he recommends Lucas Synthetic 75W90. I believe all his testing was done using this lube.
https://www.lucasoil.com/images/medialibrary/TDS10047_Syn-75W-90-GearOil.pdf




So does he still recommend his lube for our older 833s and 833ODs? The syn 75w90 is also recommended for Sure-Grips, which flies in the face of most recommendations for the 833.

This is getting a little bit complicated.

Could we just mix gear oil and ATF half and half as a compromise for our 833s?


Master, again and still
Re: 833 tranny fluid [Re: DaveRS23] #1576846
02/11/14 11:25 PM
02/11/14 11:25 PM
Joined: Jul 2007
Posts: 11,836
Florida
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mopar346 Offline
Let me tell ya about fat chicks!
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Posts: 11,836
Florida
In this thread I have read the downside or possible downside to ATF and Synthetics, so why chance it? No one has mentioned a downside to 80w90 except maybe the cold weather. I have always used gear oil but I cant say I have had any with original fluid and of course most if not all have been from down here.


Careful, your character's showing!
Re: 833 tranny fluid [Re: mopar346] #1576847
02/11/14 11:54 PM
02/11/14 11:54 PM
Joined: Jan 2012
Posts: 87
IL
6
66HEMICORONET Offline OP
member
66HEMICORONET  Offline OP
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Joined: Jan 2012
Posts: 87
IL
I agree with you 100%. Since the car will never be driven in cold weather there should be no problems if I use 80w90.

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