The stock one you have. The AOD needs an extension plate to the rear because it's mounting location is farther back about 4 " or so..
You would need to measure the AOD from the bell housing back to the rear mount and compare it to a c4 for the difference. Then have an extension plate made to bolt to the stock location and extend back to the new location. That should do the trick. The plate needs to be at least a 1/4" thick. Mark the holes center to center and leave some room for fore and aft adjustment, so your front motor mounts will besure to line up. I would start out with a plate that is longer than you think you need. Drill the AOD mounting holes and mount on the trans in the car, then mark where the cross member holes need to be making sure the trans is centered along the line with the old hole locations. The new trans is a bit bigger so it will be close to the floor of the car. Be sure to leave a little room. The vertical location could be adjusted by altering the plate if needed.
I neglected to mention that the AOD needs a special cable control that is operated by the carb. The cable control changes the internal trans pump pressure as you apply throttle. This is an absolute must and has to be properly adjusted or you will burn the bands and clutches right away if you attempt to drive the car. Depending on what carb you have, the parts should come off a car that had a carbed engine with AOD.
I have the whole setup in a wagon that I'm going to put in it, efi and all, just working out the little things now
Ok, need to plumb a new fuel feed and return lines to the tank and use a 85-87 pickup truck, external fuel pump. If the air intake is on the right side, you may consider moving the battery to the trunk and use that area for the new air box location. when the job is done it looks like it was always there.
Fuel line can be found at Summit or Jeg's in 5/16"size rolls. The feed line must handle 100+ psi. The return is low pressure. Use of hi pressure fittings and the Ford fuel filter should be considered. I have adapted my system to the stock tank in/outlet, used a short section of flexable hi-pressure hose to the filter and pump mounted on a bracket in front of the tank. At the fuel rails, I used AN 6 fittings and stainless covered flex hose. The system is now 7 years old. The tank should have a sump put in the bottom under the fuel pickup to keep the fuel from uncovering the pickup when the fuel is below about a quarter tank. On any hose ends use the wide band type of clamp not the standard type like a heater hose. Both lines are run under the right side to the fender well area and go through the side panel using right angle bulk head AN 6 fittings that meet the flex assembly to the fuel rail feeds. Carefully shape the lines to fit the contours and mount using rubber insulated clamps.
I reccomend that you use the Hedmon shorty headers and have the oxygen sensor mounts installed in the header pipes about 2 to 4 " from the header out lets. They may not always work well located at the end of long tube headers because they must heat to a temp of at least 600* to work. You will need to istall a fuel pump relay and interface the ECM with the ignition switch best done through a relay. The alternator should be at least 90 amps+ and a higher capacity battery used. This system consumes more current while running than the old seup, due to the ECM and fuel pump requirements. AT nite it gets even more important.
trans mount K. Merring, did you bolt up the AOD using that extension plate? I was wondering if that would work. It doesn't interfere with any part of the tranny? thanks
I am running a c4 and a 73 motor rettrofitted to fuel injection. Others on this board are running the AOD behind both the EFI and carbed motors. Using an extension plate should not cause any interference problems.
K. Merring- Can you tell me more about what you did to install the fuel tank anti-slosh surround for the fuel pickup?
