What type of fluid?

[1973]

Hi wondering what type of Automatic transmission fluid is for my 73 318 cuda? ( Not sure which auto tranny is in it, all stock)

 

[pschlosser]

Type-F ATF fluid will work just fine in the 904 and 727 transmissions.

 

[Katfish]

Agree, type F, Walmart usually has it in stock

 

[1973]

Thanks!!

 

[Xcudame]

Type F, Dex/merc, ATF +4, Dexron 3, etc. Chryslers three speed automatics are the toughest ever made and will run on just about any automatic transmission fluid!

If you don't mind spending a little extra money, I highly recommend getting a deeper pan from a 90's A500/42rh (if 904) or A518/46rh (if 727) and filter extension. Extra transmission fluid helps the fluid stay cooler and the transmission last longer! See gasket photo below to determine your transmission.

 

[MoparCarGuy]

Another 727 tip...
Use the Mopar 02464324AD pan gasket. It is far better than a fiber or cork gasket.

 

[pschlosser]

I am not fond of those deeper pans. But I concede I damaged a deep pan 727 driving somewhat reckless and ran my tranny until it started slipping and I was stranded. So I may be biased. Those extra 2-inches protrude the pan downward, exposed and vulnerable, unlike the factory pan. I guess if I had headers, and the collectors were down there, I'd be safer. IMO, the pan should not protrude down so far, that when the car suspension bottoms out (think exhibition of speed on an undulating back road) it hits the pavement.

 

[moparleo]

So you will concede the pan was not the actual problem....

 

[pschlosser]

So you will concede the pan was not the actual problem....

hmm. that isn't what I meant, but I think you're right. Mishaps happen, and the engineers at Chrysler did well. When we deviate from that, some issues may arise. I'm presuming few mopars can drain the stock pan dry. Maybe shifting at 8000RPM, but short of that, I see little evidence it's warranted.

 

[Ricks72Chlgr440]

hmm. that isn't what I meant, but I think you're right. Mishaps happen, and the engineers at Chrysler did well. When we deviate from that, some issues may arise. I'm presuming few mopars can drain the stock pan dry. Maybe shifting at 8000RPM, but short of that, I see little evidence it's warranted.

My first deep 727 pan came from the Mopar Direct Connection program, so it *was* engineered by those that know. I've put deep pans on all my 727's (lot of cars) since 1978 when I became a Mopar guy. The other thing I added to most of my cars is an external transmission cooler. To me it's cheap insurance.

 

[heminut]

Like most of the other responders, I run Type F fluid in my 727, always have. I also run one of the deep steel pans and have never had an issue with it.

 

[Xcudame]

I run the deep pans from RockAuto built by Dorman for the 96+ 46re transmission. That pan has small 1/8" ribs built into the bottom and a drain plug of course.

 

[Katfish]

I run the deep pans from RockAuto built by Dorman for the 96+ 46re transmission. That pan has small 1/8" ribs built into the bottom and a drain plug of course.

View attachment 144420

Do you add an extension for the filter?
If so, what kind?
I didn't see anything that worked for these stock pans on older trans.

 

[Ricks72Chlgr440]

Do you add an extension for the filter?
If so, what kind?
I didn't see anything that worked for these stock pans on older trans.

The deep pans I've used come with a filter extension & 3 screws. I got the latest one from A&A. Not sure about the Dorman pan though.

 

[540HemiCuda]

I've ran both pans on street cars and drag cars. Never seen any difference in longevity. More capacity is a good idea. But in most cases, not worth the extra effort.

And frankly, for fluid; just run whichever is handier or cheaper. And there is no problem mixing them.

 

[Xcudame]

I use this $20 extension. I even drilled an extra hole in one to use in my 64 Imperial with the rear pump. Maybe it's just because I live in the heat and I'm always wanting to keep things as cool as possible!

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