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need a transmission rebuilt

looking at the tune provided its commanding 4th gear at a higher mph which u dont seem to accomplish.....from what i know a truck needs the mph in the table to command the shift...

checked and its fine im concerning now it might be TCC valve?

im no tune expert but from ur tune file and ur data log it looks like it wasnt a slip but more of a downshift.... given u where traveling at 54 mph and at certain hill throttle % went to 45% and in...

Going home from work i need numerous WOT pulls trying to see 2-3rd gear shift... it shifts good all gears and locks up fine... but after i was getting off the freeway and coasted to a stop but i only...