First off I would like to say hello...have been looking over here off and on for awhile....but I have an issue that has me stumped. I have a built 5r110...elite stage 3, but now I went to GPZ Clutches and a Custom direct drum to accept another clutch. I just had the trans gone through as it took the direct clutches and solenoid out.

It has a suncoast triple disc convertor, all billet internals. the issue is when i put it in to reverse or d, it will stall for a second and then just lock up and kill the motor. The convertor goes in to full lock....i loaded three different trans files...same thing.

could it be a TCM issue? it isnt throwing any codes.

truck is a 2010 f 350

Julius