[onewhippedpuppy]

Originally Posted by daepp

We run a fleet of close to 40 Ford pickups at work.

F150's 2004 and later, most with 4.6: all are on their second or third tranny by 200K. I had hoped that the 6 speed 2012 was better, but it was actually more expensive to fix and the tranny lasted no longer than the 4 speed. Also the newer 4.6 has more power but no better on the trans. I still love 'em, and they're the greatest driving trucks ever so...

F250's 2001 to 2012, most with 5.4: not a single tranny replacement. And they are usually driven fairly loaded up with stuff, but very little trailering.

Just my personal experience - YMMV!

That's interesting. My inlaws have owned a 2008 F150 5.4 since new, at 130k now and it still drives great. They have done almost nothing to it. The 6-speed in the newer trucks is basically the same as the 5.0 Mustang, they put silly amounts of power through it reliably in modified cars.

I wasn't 100% happy with the fuel economy biased shift logic in my truck, so I installed a 5-Star custom tune. Absolutely night and day difference.