Diamondpilot
Super Star Member
- Joined
- Jan 18, 2007
- Messages
- 16,316
- Location
- Daleville, IN
- Tractor
- Jinma 254/284 Ford 861 Powermaster at work
With 3.55's it will be a pig if you put over 5-6K behind it. 3.73's are much more desirable. I had a 1999 F-150 with 3.55's and a 2001 F-150 with 4.10's. The driving I did I actually got better millage with the 4.10's because I rarely drove on the highway and had a trailer behind it 80% of the time.
My current F-150 with 3.73's seems to be a good match. Its a 2007 and has 40 more HP than the other F-150's I had so that makes up some of the difference. By the way all my trucks had the 5.4L.
I would say 60% of the 5.4L's have the 3.73's and about 30% with 3.55's and the last 10% with the 4.10's.
Chris
My current F-150 with 3.73's seems to be a good match. Its a 2007 and has 40 more HP than the other F-150's I had so that makes up some of the difference. By the way all my trucks had the 5.4L.
I would say 60% of the 5.4L's have the 3.73's and about 30% with 3.55's and the last 10% with the 4.10's.
Chris