i have a 2001 f150 crew cab 4x2 82k miles 4.6 with a 4r70w
was pulling it over a curb and it popped now it will shift into reverse and load the motor like its pulling against a wall . in drive it will move some but still will lock up and stop moving. i assumed something in the rear had broken from the way it would roll a few feet and lock . replaced the rear and still have same problem .
is there something i can replace to fix a stuck park or does the transmission need replaced or rebuilt?

 

I would think that something in the trans broke, drop the pan and look at the internal mechanism as someone moves the shifter to see if its working correctly, but I'm thinking a trip to the trans shop is needed.