I have a 2009 F250 CCSB 4X4 with a H&S mini max just running the canned tunes that come with the mini max. I have been running it for 2 years with no shifting issues. Today it started not just shifting hard between 3rd and 4th but jumping about 200RPM between 3rd and 4th gear. Truck does have 238000 miles on it. So my question is rather it's a clutch pack issue and time to rebuild the tranny, a tune issue, or a shift solenoid, or pressure solenoid?