I am going to flush the tranny this week with Royal Purple and can't decide how i want to do it. I changed the tranny fluid the spring before last (25K miles ago). I drained it and changed the filter, then drained and re-filled about 2 weeks later to get the TC fluid out. Now i want to put royal purple in this time and wondering if i should go ahead and change while im at it. doing a search here i guess its not too common to change the filter at every change, thats why i ask. It sure would be nice just to disconnect the output line, fire it up and pour the fluid in the dipstick...but for peace of mind i am thinking about changing the filter. what do you think?

 

I change the filter every time I pull the tranny pan. A little preventative maintenance for a pretty small price yes?

 

Or you could go with the external filter kit, just spin on a replacement. Diesel Manor and other places have it, costs about $119.

 

no doubt i would change it if i was for sure pulling the pan, but i can flush it without touching the pan. i will most likely end up changing the filter just want to hear what everyone here does.

 

I don't change the filter every time. Here's how I recommend changing the fluid.
https://www.ford-trucks.com/article/...nsmission.html

 

Mark,
Does your article need updating?
You wrote to use ATF, not Mercon V.
That counters this TSB:

M/T - Mercon(R) V ATF Usage Information
TSB 06-26-1
01/08/07
MERCON ATF IS BEING REPLACED BY MERCON V
AS A SERVICE FLUID FOR SOME MANUAL
TRANSMISSIONS FORD:
1981-2003 Escort
1984-1995 Thunderbird
1985-2007 Mustang
1985-1996 Bronco
1985-2007 Ranger
1986-1997 Aerostar
1991-2004 Explorer
1995-2007 F-150
1996-2007 F-Super Duty
2001-2003 Explorer Sport Trac, Explorer Sport LINCOLN:
2001-2002 Lincoln LS MERCURY:
1984-1995 Cougar
1987-1999 Tracer ISSUE
MERCON(R) Automatic Transmission Fluid is being replaced by MERCON(R) V as the service fluid for manual transmissions originally requiring MERCON(R). ACTION
Beginning immediately all manual transmission applications requiring MERCON(R) can now be serviced using MERCON(R) V or MERCON(R) Automatic Transmission Fluid or dual usage fluids labeled MERCON(R) / MERCON(R) V. After July 1, 2007, MERCON(R) Automatic Transmission Fluid will no longer be manufactured, therefore, availability of this fluid will continue until remaining inventory has been depleted.

 

Yes, the article needs updating. I don't have a way to modify the article.