As many time as I have pushed my car in and out of the garage today it decided it didn't want to go back in, with the parking break off and the car in neutral we were unable to push it backwards, the confusing part is that it will go forwards just fine, trying to push it backwards it felt like something was hung up. the car is an automatic (Stock rear end no limited slip, locker, or spool) , I put it on jack stands in neutral also and the same thing happened, you cant spin the rear tires by hand in neutral.
welcome to my world...LOL we put the AOD from my car into Tim's car. wheels wouldn't go backwards... after two weeks of pulling the trans and taking it to the shop and finding nothing wrong we started digging in. in the end we found it had the wrong valvebody gasket...there were 4 holes not punched in the old gasket... remember now...I ran this transmission in my car...full race AOD with trans brake and lock out reverse...