Changing the transmission filter
I do want to say sorry to the OP for derailing the thread.
I got the pan from White Bear and the filter from DieselFilters as that is where I always get my filters and trans fluid from. I just load up with a package for a group of filters and other items for family vehicles. These trans parts have been sitting on the garage shelf now for 9 months just like other parts but I'll get around to it someday. I'm fine with the Motorcraft filters as using Mark is an example, I'm sure the engineers selected the best filtering and non-starvation when the filter is loaded up at the service interval.
1. It's like pulling teeth to get many companies to publish or indicate their micron value and flow rating specifications for their filters. Certainly some do, but most don't.
2. The reportedly 100 mesh screen filter that comes in the 5R110 mated to the 6.0 is, well, less than awesome. Presuming that the '100 mesh' rating is correct, a rough conversion puts that filtration at 149 microns - far from impressive.
3. The pleated filter that came with the 6.4 implementation of the Powerstroke visibly provides far better filtration than the 100 mesh screen, but does require a deeper pan for clearance. I'd guesstimate in the sub-30 micron area. It's just a guesstimate though.
4. Our aftermarket provider of the aftermarket 6.4 filter who for separate reasons I have grown to trust and respect has repeatedly stated - on what basis I'll freely admit to you I don't know - that his aftermarket filter provides even finer filtration than the OEM implementation of the 6.4 filter.
5. EITHER the OEM filter or the aftermarket filter is certainly far better than the screen found in the 6.0 implementation.
6. For the few extra bucks that he gets (and therefore we charge - sorry) for the aftermarket filter combined with my built-up level of trust in him as both a person and a provider and short of doing my own lab testing, I would personally land on using the aftermarket filter over the OEM. In either case, though, you are absolutely far better off than the screen.
7. The 6.4 'type' filter requires a deeper pan. If you don't tow uber heavy, and don't have a penchant for sled pulls or power stands, go with the OEM 6.4 pan. We offer it on our site for less than I believe anywhere (even White Bear!) at $58.32. OEM Transmission Pan 8C3Z-7A194-B.
7a. If you DO tow uber heavy, sled pull, street race, do power stands, or for that matter even have folks other than you (contractors, workers, etc, really, but maybe also your teenage son - hah!) consider spending the extra cash and benefitting from the extra torsional rigidity that a materially more stout aluminum pan provides. It may well avoid a cracked transmission case, which will mean that you BOTH need a new transmission AND won't have a core that will be accepted - a day ruiner for sure. The extra cooling provided through the fins on these pans combined with the material itself is certainly a bonus, too, as it should yield generally lower trans fluid temps (always a good thing). 5R110 6.4 HD Pan
8. We are not fans of getting rid of the toilet paper filter behind the front bumper. It's already plumbed and CLEARLY provides finer filtration than any pleated COULD. We are, however, fans of doing the deeper transmission pan combined with one of the pleated filter options as step one. As step two, run this way for perhaps 1000 miles or so to catch all of the smaller particles that this filter provides. As step three, change out the toilet paper filter (and o-ring!) that is installed behind the front bumper to prevent it from immediately clogging up from mid-sized particles that could have been caught with the pleated filter.
Hope this helps! This write-up has become thorough enough that methinks I should add it to our transmission page. Hah!
The external filter went away the at the same time the internal filter was upgraded. It was an either/or, they never ran both.
Adding the new pan and filter... $93 gets you 100% filtration and you can remove the by-pass filter completely, eliminates the cost of replacing it. .......
I also listened to Mark's take. The way I looked at this was if you operate the vehicle so the trans fluid is typically getting into the temp range then the roll filter will work acceptably, but you need to maintain the fluid changes per schedule. If your vehicle operation is such that you don't get the thermostat open that often, not too much filtering is going on and your relying on the fluid changes to remove debris. Either case, fluid cost or environmental considerations over say 100k miles may also sway your decision on going to the newer pan and filter. But the costs are about equal if your going to have the vehicle for 100k miles. 200k miles and the new pan is cost effective.
I know for some bypass filtering vs direct is frowned upon, by GM/Detroit 2 Stroke diesel like in my dozer use bypass filtering and last a long time.
To me the bigger point is your transmission operation temperature; are you filtering debris or staying cool and keeping the debris in the fluid. I know for me I notice a dramatic change in the coloration of the roll filter, my towing period vs light duty operation. I'd rather not have debris within the areas of a bearing or spool surface.
4. Our aftermarket provider of the aftermarket 6.4 filter who for separate reasons I have grown to trust and respect has repeatedly stated - on what basis I'll freely admit to you I don't know - that his aftermarket filter provides even finer filtration than the OEM implementation of the 6.4 filter.
5. EITHER the OEM filter or the aftermarket filter is certainly far better than the screen found in the 6.0 implementation.
6. For the few extra bucks that he gets (and therefore we charge - sorry) for the aftermarket filter combined with my built-up level of trust in him as both a person and a provider and short of doing my own lab testing, I would personally land on using the aftermarket filter over the OEM. In either case, though, you are absolutely far better off than the screen.
Hope this helps! This write-up has become thorough enough that methinks I should add it to our transmission page. Hah!

Ford Trucks for Ford Truck Enthusiasts
Just when you thought the road ahead was straight, here comes another curve.
To clarify, are you saying that a colder temp doesn't filter out media as well in the TP filter? Knowing the thermostat and my consistent tranny temps, how could there be a significant way measure effectiveness?
I'd think hotter fluids wouldn't allow the debris to be carried on but sink with lower viscosity?
I'm still feeling that more filtering isn't a bad thing, not less.
Go figure.
Now it will get filtered when the trans goes up in temp to over 165F but it all depends on your driving condition and ambient temps. During winter, again based on your driving conditions, that could take months as it has for me.
It's not the death spiral it sounds like it is, as we don't see a high failure rate with these transmissions. Mark and his colleagues did a good job developing the system. But they found a better way.
IMO, it's your transmission operating temperature that you normally see that should first base your decision on an upgraded internal, always filtering pan and filter change, or stay the course. Then the consideration of other things.
Thanks again.
And Jack: doing a payout on a $90 update...?

The question that isn't answered for me is why a different internal filter than the factory one -- Ford did all the testing to determine the right media, what did the next guys do testing-wise? I'm hearing a vacuum of information...
No offense intended Ed, but hearsay is, kinda' worth squat -- you are a valuable resource here and offer both options -- it'd just be nice to know what I'd get for the extra dollars...














