2008 f250 external trans filter or internal??

Hey guys,

I've been researching for hours and cant seem to find a confident answer, I have a job 1 f250 with a build date of 05/07 (on inner door sticker), oasis report said this on the build date (Production Date 28-MAY-07 Warranty Start Date 29-AUG-07). I noticed my trans fluid was low and figured it was time to do a pan flush with new filters.

Where on the truck would my external trans filter be? right under the pan with 4 trans lines running into it? I've look and do not seem to see anything under the pan of the truck, other people have stated its somewhere on the passenger side but I am having no luck locating it. I bought the truck 4 months ago so I'm not sure if maybe the previous owner had the external filter removed or not. Can anyone tell by the pictures if I have an external filter on this truck or has it been ******d?? If this is the case do I just need to change out the internal filter (is there a part number for this?)

I've already got a box of fordmoco fluid, just stumped on where to located this external filter if I even have one!


BTW: I think most of the oil down here is from the CCV mod, I need to re-route.
Thanks guys,

Here are some more pics of the lines, does it look like I have only an internal filter?

Anyone know the part number for this

Do I possibly have an updated 08 trans pan, that takes the newer transmission filter. should I upload a picture of my pan?

You do not have an external filter. I believe the external filters were only on job 1 450-550 trucks. Dont see too many with the filter on them. If you had it, it would be bolted t the bottom 2 bell housing bolts, and be a black canister with 4 lines on it.

Thank you for that, much appreciated.

will this filter be the one used then: https://www.amazon.com/Motorcraft-F...3-1ba4-4f4e-bdcc-0febe090b8ed&pf_rd_i=desktop

Also would you advise I chance out the pan gasket as well? it has 133k miles

Looks like the right filter. Pan gasket is a toss up. It is a reuseable gasket, but if you see any issues like nicks or tears, you ought to replace it.

6.0 Tech said:

Looks like the right filter. Pan gasket is a toss up. It is a reuseable gasket, but if you see any issues like nicks or tears, you ought to replace it.

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Thank you for the input, much appreciated! I'm glad I finally got that out of the way so I can flush out the trans and put in some new fluid and a filter.

What do you think about putting Mercon SP into transfer cases? I've read mixed reviews... Any suggestions for the front and rear?

6.0 Tech said:

You do not have an external filter. I believe the external filters were only on job 1 450-550 trucks. Dont see too many with the filter on them. If you had it, it would be bolted t the bottom 2 bell housing bolts, and be a black canister with 4 lines on it.

Click to expand...

Wrong. My 03/07 Manf. Job 1 F350 has an external trans filter.

My 08 job 1 F250 that I had definitely had the external filter and the screen in the pan. It was right below the bell housing by the engine oil pan. But based on your pictures, it looks like yours does not have the external filter.

Black AOD said:

Wrong. My 03/07 Manf. Job 1 F350 has an external trans filter.

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My bad... I did say i believe :lol: i think ive only seen them on the bigger rucks personally. Dont see em too often.

I'm not 100% certain as to what it is, but my 2008 Job 2 F250 has some sort of filter type housing/canister up towards the front of the passenger side frame rail near the bumper. It's about 3" long and about that diameter. I could be way off base as to what it is, but it seems to me that it had a line that ran up to the cooler in front of the radiator. I don't have any pics, but can get them if needed.