FX4 F2-Fifty
New member
IS the tranny in your truck the same as an 08?
If so, the 4rth gear thing can be fixed with a 3/5 direct clutch solenoid. I had the same issue and was talking to my Mechanic Josh Clark out of Georgia and he recommended that I put a gogo diesel 3/5 DCS and a suncoast TC and man let me tell you..night and day diff. I actually have all 5 gears now and no more sloppy shifts. The Ford guys say that the 4rth gear in my tranny when it was stock might as well not even been there...it was like you said straight from 3rd to 5 most the time.
Sounds like the Ford guy is right. "4th" gear is not used unless in extreme cold. So the transmission is correct by shifting from "3rd" to "5th" then to "6th". Technically the 5r110 has 6 forward gears and the 3/5 DCS helps with the shift from 3rd to 5th. I do get what your saying though, and Dougs solenoid is on my wish list. Not trying to be a di*k just thought that might be what the guy at ford was trying to say.
OP- The early shifts are just part of the tune, as is the torque converter not locking in OD sometimes. The X-Race also will lock the converter in 2nd as well. As it says it is a RACE tune.