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ATF4 in A833, good? bad? ugly? #1003943
05/31/11 08:06 PM
05/31/11 08:06 PM
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541 slobovia
A990 Offline OP
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This is for a street driver, no racing, with an occasional Jungle Jim style burnout.
FSM says 140 or 90, but since I have enough ATF4 on hand I thought I'd seek some input

Re: ATF4 in A833, good? bad? ugly? [Re: A990] #1003944
05/31/11 08:24 PM
05/31/11 08:24 PM
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IL, Aurora
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Bad,

Re: ATF4 in A833, good? bad? ugly? [Re: ademon] #1003945
05/31/11 09:00 PM
05/31/11 09:00 PM
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Montana
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...then ugly.

Re: ATF4 in A833, good? bad? ugly? [Re: FuryUs] #1003946
05/31/11 09:02 PM
05/31/11 09:02 PM
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Kirkland, Washington
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never good...

Re: ATF4 in A833, good? bad? ugly? [Re: FuryUs] #1003947
05/31/11 09:08 PM
05/31/11 09:08 PM
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541 slobovia
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OK, Im truly not trying to euthanize it. So just dump in some 140 and call it good. Or is 75-90 or 90 a better setup?

While I'm at it, would a magnetic drain plug be worthwhile?

Re: ATF4 in A833, good? bad? ugly? [Re: A990] #1003948
05/31/11 09:32 PM
05/31/11 09:32 PM
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Agree no ATF+4. With gear oil the 140 will make it quieter but possibly slow shifting and create a bit more friction. I'd do 75W90 or 80W90 but straight 90 would be OK also.

Re: ATF4 in A833, good? bad? ugly? [Re: A990] #1003949
05/31/11 09:45 PM
05/31/11 09:45 PM
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South Park, Pa.
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I'm the original owner of my RR. Since it was vertually new I've run nothing but Dextron ATF. Never broke it and never had to change parts because of wear. Say what you will about ATF. Everyone has an opinion. Mine is there is nothing to be affraid of with ATF. I race my car, but most of the time it is street driven. No issues at all doing either. When racing, it shifts like butter through a hot knife. On the street, the same, hot or cold. Take it from 43 years of first hand experience. ATF does work in A833's. ATF4 is another story. I don't have any experience with it. But being nothing more than an ATF synthetic, it should work also, but with an additional cost.


4 speed street legal. Best time 10.99 @ 124 mph on 93 octane pump gas @ 3926# total weight
Re: ATF4 in A833, good? bad? ugly? [Re: 68LAR] #1003950
05/31/11 09:59 PM
05/31/11 09:59 PM
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Atco NJ
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Quote:

I'm the original owner of my RR. Since it was vertually new I've run nothing but Dextron ATF. Never broke it and never had to change parts because of wear. Say what you will about ATF. Everyone has an opinion. Mine is there is nothing to be affraid of with ATF. I race my car, but most of the time it is street driven. No issues at all doing either. When racing, it shifts like butter through a hot knife. On the street, the same, hot or cold. Take it from 43 years of first hand experience. ATF does work in A833's. ATF4 is another story. I don't have any experience with it. But being nothing more than an ATF synthetic, it should work also, but with an additional cost.




I agree - and anyone who thinks ATF will cause damage is nuts!


My dad is the original owner of a '70 challenger 383 4 speed car - he now has 114,000 miles on it. it had a rebuild at 112,000 miles and all that went in it was bearings, shift forks, seals, & gaskets.
He towed a camper trailer from NJ to as far as Missouri. He also drag races it when he has time and is never easy on it.


Guess what was in it? ATF!

guess what went back in it ? ATF

Trailer in the 70's ( skyline drive)


Here is how he drives it...




ATF has never been a problem -

The only other lube I'd recommend is the one Jamie Passon makes on his own, as I am sure he has a well developed product.

Last edited by DJVCuda; 05/31/11 10:02 PM.
Re: ATF4 in A833, good? bad? ugly? [Re: A990] #1003951
05/31/11 10:05 PM
05/31/11 10:05 PM
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Bend,OR USA
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Quote:

This is for a street driver, no racing, with an occasional Jungle Jim style burnout. FSM says 140 or 90, but since I have enough ATF4 on hand I thought I'd seek some input


I have owned many Mopars with NP 833 4 speeds in them that had ATF in them from the factory ATF will work excellent and make the trans. shift a lot easier than 75-80W gear oil will Especially if you live in a area that has cool to cold weather A 727 trans have a lot more gears and pressures internally than a NP833 does


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: ATF4 in A833, good? bad? ugly? [Re: DJVCuda] #1003952
05/31/11 10:08 PM
05/31/11 10:08 PM
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NJ-USA
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ATF was actually the recommended fluid by Chrysler when these units were in cars in cold climates. I have rebuilt countless 833's in the last 25 years or so and will tell you that in my experience, the ATF doesn't seem to have a negative affect.

BTW. The absolute BEST fluid to run in one of these units is GM Synchromesh. YOu will not believe the shift quality with this fluid in there. That being said, if it were a trailer queen/resto, I would spec gear oil. The "cling" of that heavy stuff helps keep things happy.

MB

Re: ATF4 in A833, good? bad? ugly? [Re: A990] #1003953
05/31/11 11:28 PM
05/31/11 11:28 PM
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Rittman Ohio
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ATF for auto trans
Gear oil for manual trans
I personally don't think ATF will lubricate a manual trans as well as gear oil does
Gus


64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
Re: ATF4 in A833, good? bad? ugly? [Re: A990] #1003954
05/31/11 11:50 PM
05/31/11 11:50 PM
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Aurora, Colorado
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Re: ATF4 in A833, good? bad? ugly? [Re: 451Mopar] #1003955
06/01/11 12:09 AM
06/01/11 12:09 AM
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Iowa State fan
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What atf? Dexron, type F ? Which one are the atf guys using.

One thing I wouldnt use personally is synthetic 75-90w. Switched from standard to synthetic it was TERRIBLE! Wont down shift properly now, slower up shifts. Thinking about trying out atf, best experiences in life are those you try, even if you fail.


1973 Charger, former SE, former auto

I'm not trying to be difficult, it comes naturally....
Re: ATF4 in A833, good? bad? ugly? [Re: HPMike] #1003956
06/01/11 12:15 AM
06/01/11 12:15 AM
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Toronto
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Quote:



BTW. The absolute BEST fluid to run in one of these units is GM Synchromesh. YOu will not believe the shift quality with this fluid in there.

MB




I have heard this more than once.. I picked up some 80W90 high pressure gear oil for mine, but im wondering if I should give the synchromesh a try

Re: ATF4 in A833, good? bad? ugly? [Re: mshred] #1003957
06/01/11 12:29 AM
06/01/11 12:29 AM
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fredericksburg,va
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If im not mistaking atf was used in the hemi trans and gear oil used in the 23 spline. The 18 spline had brass bushings and the 23 run metal to metal on the main shaft. been 40 years since i worked for the dodge dealer,might be wrong.

Re: ATF4 in A833, good? bad? ugly? [Re: cudaman1969] #1003958
06/01/11 02:59 AM
06/01/11 02:59 AM
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owensboro, ky
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I switched out the ATF-4 in my SRT-4 and went to Royal Purple synchromax. It seems to shift smoother and has quieter operation. The ATF-4 didn't seem to last as long between changes. As far as my 833 in the Challenger, I'll be using 80w90. I don't figure I'll be driving it in the winter anyway.

Re: ATF4 in A833, good? bad? ugly? [Re: rallye73] #1003959
06/01/11 03:12 AM
06/01/11 03:12 AM
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Granite Bay CA
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Nobody here has a factory service manual? I have one from 1969 and it shows ATF for cold to mild climates. I have used Valvoline Dexron ATF in the 833 in the FrankenDuster for years. ZERO troubles. The ATF+4 is synthetic and may have a lower coefficient of friction, which would certainly wreak havoc with the synchronizers. They need some friction to work properly. It is this need of slight friction that Hypoid type gear oil is also NOT recommended for manual transmissions.

Re: ATF4 in A833, good? bad? ugly? [Re: Kern Dog] #1003960
06/01/11 03:18 AM
06/01/11 03:18 AM
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NO RUST IN AZ!!!
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NO RUST IN AZ!!!
my moms 74 duster IN AZ had atf (dexron) from the factory in it still does

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A Real man aint afraid to drive PINK!!!!

67 Plymouth Valiant PILOT CAR 273 Commando 4 spd

Re: ATF4 in A833, good? bad? ugly? [Re: DJVCuda] #1003961
06/01/11 04:33 AM
06/01/11 04:33 AM
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Oakdale CT
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Quote:

I agree - and anyone who thinks ATF will cause damage is nuts!






As a factory tech in the 80's I saw a number of 833's (In trucks of course) with excessive bearing wear which in my opinion was caused by the factory fill of ATF used at the time for better MPG.

The lightest fill I would use would be a 15W40 or other such lube but not ATF

Re: ATF4 in A833, good? bad? ugly? [Re: gdonovan] #1003962
06/01/11 07:17 AM
06/01/11 07:17 AM
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nielsville, minn.
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I ran ATF up here in Minnesota in my 4-spds in the winter. At -30 you can't even get it in gear when it's cold with 80-90. In the summer I'd run the 80-90 just because it was quieter. Dave

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