hey everyone,
Just wanted everyone to know (for those of whom DONT already know this)
After ford discountinued the mercon fluid for our 4r100 trannys they reformulated the MERCON V to be compatable with our trans... NOT OUR MERCON FLUIDS!!!
We can use MERCON V in our 4r100 trannys ONLY IF you flush the entire trans, cooler, and lines, then the MERCON V will surpass as an applicable fluid type w/ or w/o Valve Bodys
****IF YOU PLAN ON DOING A FACTORY TECH VALVE BODY OR PUNISHER VALVE BODY PLEASE READ BELOW*******
ISSUE: if you have the orginal fluid MERCON in your trans, or after you flushed it and resued MERCON, you CANNOT add MERCON V to your trans and have it be mixed with the MERCON. THAT WILL NOT SURPASS and expect to be rebuilding your transmissions!!..
RESOLUTION: Certain companys make mercon/dexIII which is compatable with our preexisting MERCON fluid.. Particularly ADVANCE AUTO PARTS makes DEXIII/M: (this is what it says on the net) PART NO:A100
Advance Auto Parts DEX III/M Automatic Transmission Fluid is formulated for older model Ford and General Motors vehicles requiring MERCONŽ, DEXRON-IŽ, DEXRON-IIŽ and DEXRON-IIIŽ.
SO JUST AN FYI TO EVERYONE and ESPECIALLY THE NEW GUYS (EVEN MYSELF) if you plan on servicing, or installing a aftermarket valvebody..
My uncle works for ford (10 years now) , and after speaking with him about this, Mad Mike, and a few others, i figured i would everyone know now so they have this in the back of there minds..
(hopefully this becomes a sticky but if it doesnt, regardless i let everyone know the heads up..