I just got a rebuilt aod and put it in this weekend. After finishing. I took it for a test run. Only to found out it wont shift out of first gear in the drive position or in overdrive. I think it has to do with the valve body but not 100% sure.

Thanks for any help to what it might be.

 

Did you check the tv cable grommet on the throttle body?
Alan

 

Yes, and it didnt do anything, everything on the TV cable works fine. So I think it is the valve body or the govenor but not really sure.

 

It was the govenor. one of the valves was sticking.