Just a quick thought, have you done a flush/cleaning on your transmission lately?

 

From what I understand they are a complete rebuild but the torque converter is a new billet unit and heavy duty lock up soleniod. Darrin will ship out the tranny and torque converter, then you will ship him your old one as a core.

I plan on getting this set up but not right now I am going to wait till mine is dead. There is a write up in the latest Ford Performance truck magazine.

 

here is a link that has the article scanned in starting at post #9

https://www.f150online.com/forums/sh...highlight=rafa

 

Thanks Huitt, that is where I remember seeing it in the first place. I'd love to hear from Rafa and see how it is working out for him.

I guess I'll have to give these guys a call and get started on the swap. I might as well do a new driveline at the same time and get it all done at once this winter.

 

when im driving at 75mpr and hit the accl hard the rpms rize like thay should but it slames in to gear what the hell is that and with all that it shifts hard and slips from time to time.