do you have a trans temp gauge ? (other than the pos that ford put
in the dash?) unless youre running HOT i wouldnt bother.
make SURE youre changing the factory supplied trans by-pass filter
(mounted up front under the radiators on the passenger side)
and make sure youre FLUSHING the fluid at the intervals required...
DO NOT USE FLUID OTHER THAN MERCON
SP
MOST independant shops <dont know what mercon
sp is>
they dont keep it in stock and they would have to have a sep.
machine w/ it in for flushing.
mercon or mercon V is NOT ACCEPTABLE transmission fluid for the 6.0
torq-shift automatic.
if anything you might wanna consider the move to the fin'd 2008 rear
diff...doesnt add any capacity but it will add some cooling (and look
nice)...it wont rust either...and its 4+ times LESS (cost) than a
mag-hytec
check my links for info on the trans gauge (and why the factory supplied
unit sux).
ive got links in there to the rear-diff cover.
you can flush the trans in your driveway if you follow the directions
(like i did) -->
Truckblog - How-To Flush Ford's Torqueshift Transmission
youll need about 22quarts of mercon SP.