If you put the car on the "rollers it should be fine.Be sure to mount the doors and if you plan on new or rebuilt door hinges you need to put those on as well before mounting the doors.Make sure the doors line up with the old quarters before cutting them off otherwise you may have trouble lining up afterwards. In other words, if you line up with the old door hinges and replace the qtr.,then replace the hinges the door may sit higher and not match the new qtr.I have seen that happen before and its not easy to fix. I guess that may be a little different with the AMD panels as it is an entire replacement but better safe than sorry IMO.