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I own a 2010 Ford F-350, 6.4L 4x4 DRW King Ranch with roughly 52,000 miles. The VIN states that it has two transmission filters - one that is accessible by dropping the pan, and one that is external.

I’ve looked through You Tube videos and found one that shows the location of the external transmission filter on a 2007 model, but can’t find anything for the 2010.

I’ve looked for the external filter under the truck, but can’t seem to locate it.

Would anyone have a photo, video or drawing as to where this external transmission filter is located?

Second question. I have heard that having the transmission completely flushed might not be a good idea, and that it is better to just drain what is drainable, change the filters and add new fluid to the proper level.

If I have the flush done, it will be at a Ford Dealer. Does anyone have an opinion as to doing the full flush verses just draining, replacing filters and adding new fluid. I know that without the flush, you do not get all of the fluid out.
 

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a 2010 will only have the internal filter or a 5r110W not a 5r110 dual filter

it is easy to tell the difference yours will have a paper media visible

how many miles on your fluid ?

the heated flush is only as good as the people and machine doing it
so a an drop and fluid change then a drain and fluid fill is an option if the fluid still looks good
IMO
 

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Discussion Starter #3
a 2010 will only have the internal filter or a 5r110W not a 5r110 dual filter

it is easy to tell the difference yours will have a paper media visible

how many miles on your fluid ?

the heated flush is only as good as the people and machine doing it
so a an drop and fluid change then a drain and fluid fill is an option if the fluid still looks good
IMO

Thanks for the reply.

I drained the pan and changed the filter at 25,000. So, this filter and fluid has roughly 30,000 on it. I used Amsoil which means I have a mix of Ford's and Amsoil's fluid. I think I'm going to just drain the pan, drop it, change the internal filter and fill it back up. Which oil would you suggest using?

It's interesting that Ford is showing an external filter for my VIN, and the service scheduler at Ford said it has an external and internal filter. Doesn't really give me a great deal of confidence in letting them touch my transmission...
 

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the other external filter was under the bell housing ( coke can) and was only used for a short time until the in pan real filter change vs the screen the mid -08 had

your 2010 is not anywhere near the range of the changeover IDK why your VIN is showing a remote ? the only other time they installed an optional filter was after a transmission replacement they used to spec an inline filter (black can )

i don't see any advantage to using Amsoil here last I read it was 12 a QT and you still need to stick to the fluid change interval I can get Merrcon LV for under 5
 

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one more thing is with a 2010 you service interval for the first service was 60,000 IRC ?
I do not remember what it is after the first one on yours

the previous years was 30,000 the only real changes were the fluid SP/LV and the in pan f
 
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