Yes, Napa sells them for sure. I've seen some say they got theirs on Rock Aito

 

I got to ask,

Why / What is the reason you suggest changing fluid "4-5 quarts at a time every couple of weeks"?

I've changed the fluid on my 05, 08, and friends 04, and did it all at the same time.

I'm just curious if this is the preferable method and why. That way, when it's time again, I'll do it the best way.

Thanks

 

I chose this way to gently make the transition to new fluid . Getting all the fluid out at home is not easy . So I change the filter and new drain type pan at the same time ,cleaning the magnet and other stuff I can reach . Of course move the magnet over to the new pan .
The pan drop lets you get out 4-5 quarts at a time so I ordered mercon v-- 20 quarts amazon and dorman drain pan . The capacity of the transmission and torque converter is way more than 5 quarts (around 14 quarts ). . . So depending on your usage it is easy to pull out that amount and burn it over a couple of weeks . That gets it all out of the torque converter and fairly clean . This method a lot cheaper than using a shop flush and you know what you are getting .
I do large tree pile burns so the fluid helps with that on a very hot fire . None makes it to the ground or smokes .
I start my fires with used motor oil as it burns very long and hot .
I do not trust shops to use the correct fluids/old fluids or strip my bolts ,I do tow a lot and should do a change like every 30k .But I am behind schedule . Plus my vertigo slows me up getting under vehicle . Be very careful not to over fill trans ,sneak up on filling .
I feel this is a preventive not a fix. Do yourself a favor don't use chain stores for repairs, find a very reliable shop for a redo . Don't just go lowest price .
If you can, get a good trans cooler installed -plate type , I just gave one to my buddy as a present for helping me . He had lost two chevy transmissions and he pulls a 35 foot rv . .
Mine Still on orig trans at 178k .

Here is another method thread
https://www.ford-trucks.com/forums/6...e-schedule.htm

 

Here are some tips that may come in handy if you decide to do the transmission maintenance yourself.

Transmission: 4R75W
ATF type: Mercon V

1. I dropped the transmission pan and changed the filter also...not necessary, but I wanted to see how dirty the pan was...I used a Motorcraft transmission filter $21.00 at my local Ford dealer (Part # FT-105). The transmission pan bolts are 10mm (14 of them). There is no drain plug on the pan so be careful loosening those last couple bolts....Just an FYI: Don't be alarmed if you find a "dust plug" sitting in the bottom of your pan. This is punched out and into the pan at the factory. This plug keeps foreign debris from getting into the transmission during assembly at the factory.
2. Clean the pan (mine was pretty clean @ 30k)
3. Remove old filter (if changing), simply pull straight down on the old filter (make sure the rubber sealing grommet comes off with the old filter.
4. Gently push on new filter.
5. Install drain pan with reusable gasket. Bolt torque is 10 ft-lbs.
5. Add as many quarts of ATF as you removed from the pan (I had ~5.5 quartz in the pan). ATF is added through trans dip stick tube.
6. Next I flushed the transmission to replace all the old trans fluid with new.
7. Ford stopped installing torque converter drain plugs (I believe in 2003)...
7. To flush the transmission, I used 5/8" inner diameter clear tubing (10 feet). I bought mine at my local Home Depot (~ $5). Also, a 5-gallon bucket comes in handy to catch the used ATF.
8. I unbolted the lines going into and out of the transmission cooler (behind the front bumper). The fittings were 7/8".
9. Install the 5/8" inner diameter tubing onto the lines and into a bucket.
10. Start the truck, and let ~ 1 to 2 quarts flow out of the tubing lines. Turn off the truck and add the same amount of ATF fluid you just pumped out of the transmission. Keep doing this flush and replace method until you have pumped out and replaced about 9 quarts of fluid....you'll notice the fluid coming out of the cooler lines getting cleaner and cleaner as the old fluid is being flushed out. The total transmission fluid capacity is 13.9 quarts.
11. Reinstall the cooling lines...
12. Clean up and check your trans fluid level is at the proper level....
13. Go for a test drive to warm up the fluid (~20miles per the manual)
14. Recheck your fluid level, should be in the "hot" range with the engine running, transmission in park, and truck sitting level.
15. Congratulate yourself on saving ~ $100 bucks by flushing the transmission yourself.

Notes of interest: I didn't have a magnet in the bottom of my drain pan. Let me know if you guys find one in your transmission drain pans...Maybe Ford stopped installing magnets in the drain pans? Maybe mine was left out from the factory? If so, I'll have to install one next transmission service.