904 filter

[itsdiz]

I have a question for the transmission experts - I thought I knew 904 Torqueflites pretty well, I have owned several slant 6 cars with them and even rebuilt the one on my 1960 Valiant back in the early 1990s. I bought a filter and gasket kit to service mine on my 1965 Barracuda with 273 V8. The new one had two holes - one feed, one return? - and was smaller than the old filter which only had one hole. I looked at the valve body and there is two holes in it so I went ahead and installed the new filter. I was not aware there were two styles, anyone have any information on this?

 

[Dana67Dart]

I just looked up 67 dart automatic and the kits seem to have only one filter that looks like the one pictured, but comes with a ,904 and a 727 gasket.

The image shows both sides of the same filter.

 

[Darter6]

1965 (and earlier) had front and rear pumps. 1966 the rear was done away with.
If you had a dead battery (Pre1966) You could drift start cars with the rear pump.

 

[Dana67Dart]

1965 (and earlier) had front and rear pumps

Had no idea! Thanks

 

[itsdiz]

I just looked up 67 dart automatic and the kits seem to have only one filter that looks like the one pictured, but comes with a ,904 and a 727 gasket.

The image shows both sides of the same filter.

View attachment 1716491922

Mine came with both gaskets also, the filter that was in the trans is like the one in this picture and that is the way I remember them being, but it's been many years since I have had one, could it be just an aftermarket mod for better flow?

 

[Dana67Dart]

My concern about two holes would be if your trans did not have the second inlet it could allow fluid to bypass the filter material.

 

[RustyRatRod]

I don't like those crappy paper filters anyway. I use the brass screen filters. Flows a lot more fluid.

 

[Darter6]

I use the brass screen filters.

O.E in the 1963 and earlier years . Also had inline filters in the transmission cooler line. Bought a 63 Valiant, had both when I serviced it

 

[WV64Signet]

Y

My concern about two holes would be if your trans did not have the second inlet it could allow fluid to bypass the filter material.

Yessir

Dual pump... two holes. I agree that the earlier, two hole could be a problem

 

[itsdiz]

1965 (and earlier) had front and rear pumps. 1966 the rear was done away with.
If you had a dead battery (Pre1966) You could drift start cars with the rear pump.

Yes, learned that when I had my 1961 Valiant, the 1965 trans is the same as the 1964 and earlier push button automatics, with a cable rather than hard linkage so I was thinking it probably had the rear pump also just like earlier. The owner's manual in my '61 actually gave instructions how to push start the car.

 

[itsdiz]

I just went to Rock Auto and compared - 1965 shows two holes, 1966 one hole so I am reasoning that because the early style has two pumps - front and rear - there are two holes. As I said there are two holes in the valve body. I think the PO changed the filter while he had it because it was like new, BUT it is the later style with just one hole/single pump trans. That is how I remember them being on my 1970s slant six cars. I got mine from Oreilly's and they also had a WIX kit with both types of filers in it. The main reason I did this is because it had a slight leak around the edge of the pan. I tried retorquing but that did not help. When I removed the pan I found that it had a rubber infused cork gasket, and of course this later style filter so I am glad I changed it, mine came with a solid rubber gasket. Another leak that I had repaired earlier this year was due to the shift cable housing getting melted against the exhaust. I got lucky and found one in a salvage yard while traveling through Minnesota earlier this year.

 

[itsdiz]

O.E in the 1963 and earlier years . Also had inline filters in the transmission cooler line. Bought a 63 Valiant, had both when I serviced it

I had a 1961 Valiant with 170 slant six but it did not have an inline filter. I do see Rock Auto actually sells them.