The Auto subframe is wider, with the extra space on the torque converter side.

The front crossmember is bowed forward compared to a manual which is straight. This is to let you get the valve chest cover off the gearbox with the motor and box in the car.

The engine mounting locations are in different places, as well as being 3/8" lower in the frame.

Front subframe removal

1. Remove the battery
2. Drain the cooling system (radiator, heater etc)
3. Remove the radiator and exhaust
4. Various engine components can be removed as desired
5. Undo the front and rear engine mounts
6. Lift out the engine and gearbox (using an engine crane or hoist)
7. Undo the Hydrolastic fluid pipes
8. Place your jack with a suitable piece of wood under the subframe
9. Raise the jack to just lift the car
10. Undo the front and rear subframe mounts, wheels, and steering rack ball joints
11. Lower the subframe with your jack until it is clear of bodywork