6.7 with Ford 6R140 transmission
Can you change the fluid in this tranny DIY like you could the old 5R by draining the pan then disconnecting the cooler lines, starting the truck and drain and fill at the same time to remove the rest...
Forum Discussion
Clarification...
If the transmission has less than 10k miles on it or one of the internal clutch packs, it requires a {Ford} friction modifier. After that point, it does not.
If the transmission has less than 10k miles on it or one of the internal clutch packs, it requires a {Ford} friction modifier. After that point, it does not.
