Mustang AOD Removal step by step.
Use the information at your own risk.
There is no claim to accuracy.
Mustang AOD Removal
Step by Step
Removal from a 91
To begin with what we will need to do is grab a nice assortment of sockets,
I prefer deep sockets and make sure that you have standard and metric. Most
of the bolts/nuts will be metric.
- Drain Tranny Fluid: Remove all the bolts but one on the
front of the transmission pan and let it all drain into a catch pan of some
sort. Make sure you bring out the biggest thing you have and then some most
likely. This is a messy job! Next put a bolt in the back of the tranny pan
and remove the front bolt. Now remove the bolt and grab hold of it and
slowly bring it down and pour the rest of the fluid into the pan. Reattach
the pan with all bolts onto the transmission again.
Side note - Now would be a good time to check out the things on the inside
of the pan. See if you notice the tranny fluid is burnt or if you notice
clutch pack material, maybe silver in the fluid from metal?
- Driveshaft Removal: Remove the 4 bolts at the rear of
the driveshaft bolted to the rearend and then tap it off with a hammer if
it's stuck. From there pull the driveshaft towards the rear of the vehicle
to remove it from the tranny, make sure you have something to catch any
fluid that comes out of the tail housing.
- Starter Removal: Remove the 2 bolts that hold the
starter in and remove the nut attaching the wire and toss the starter off
to the side.
- Torque converter bolts: At the front of the bellhousing
bottom half is a small thin metal plate. If I recall correctly it is held
in by 2 bolts. Remove these bolts and slide the plate out. From here you
will be looking for 4 nuts and there will be a bolt in there. These things
will be coming through the flywheel. This is the torque converter. What you
need to do is remove the nuts one at a time. You will have to have someone
turn and hold the engine. Have them turn it over by attaching a ratchet to
the crankshaft pulley bolt and have them turn the engine from here also, to
expose the other 3 nuts. Once all 4 nuts are removed then you are done
- Speedo gear removal: On the driveside of the tranny on
the bottom section of the tail housing there will be a cable running into
the tranny held by a bracket attached with a bolt. Remove the bolt and
wiggle the Speedometer gear out of there and put it out of the way.
- Linkage Removal: First we begin with the shifter cable
will be a rather large bracket attached to the driver side of the
transmission that is held on by 2 bolts. Remove these two bolts and yank
the bracket away from the transmission. From here follow the cable to where
it attaches to the transmission and remove the nut holding it and yank the
cable right off and set it out of the way. The other linkage piece would be
the kickdown linkage. Where it is mounted on the tranny just remove that
nut also and pry it directly away from the transmission. Follow it up a
little ways to a bracket its attached to on the tranny and remove the bolt
there and get this thing outa the way also!
- Transmission mount: Remove the 2 nuts on the bottom of
the transmission crossmember that are holding the tranny to it. These nuts
are for the transmission mount.
This should have us mostly done with the driverside pieces and the like so
what we do now is get a jack out.
- Crossmember removal: Place the jack under the
crossmember and get it so it is holding the rear of the transmission up.
From here you will need a socket on the bolt on the back of the crossmember
and a wrench for the front part. There are 2 bolts. One on each side. Get
the nuts off of them and then tap them out with a hammer and pull with
pliers if needed. Slowly lower the jack down and once low enough remove the
crossmember and set it out of the way.
- Bellhousing removal: You need to have something
underneath the transmission to support it. Just have it barely jacked up to
it just so they are making contact. You can use a jack with a block of wood
or a tranny jack here. Move to the passengerside and remove the bolt
holding the dipstick tube to the block. Once it's out yank the dipstick
tube out of the transmission and set it to the side. Next you will need a
nice set of extensions. What you should start out with is loosening all of
the bellhousing bolts. I recall 2 on top, 2 on the right and 2 on the left
side. Get these all loosened then start from the bottom and work your way
up removing the bolts completely.
After these bolts are removed now is a good time to take a break or get
ready for a little bit of harder work than what you have been doing.
Friends can be helpful
- Put a jack with a block of wood or something underneath the rear of the
oil pan to support the engine and grab a crowbar.
- Tranny removal: Take that crowbar and put it between the
rear of the oil pan and the bellhousing and pry those 2 suckers apart! It
may take a bit but once you get it right the things will just rip apart.
From there it's a matter of finessing your tranny back and down.. Slowly do
minor adjustments... Lower a bit here and then backup some then lower again
and back up more etc. Make sure you have your car jacked up quite high so
that the damned bellhousing clears b/c it is QUITE large. The bellhousing
its 16 and a half inches tall. I had all 4 corners of the car up in the air
for this project.
- Once removed then its a good time to clean up that mess of tranny fluid
you spilled, put the dipstick tube back in. MAKE SURE YOU BAGGED AND
LABELED ALL BOLTS! and if you want you can lower your car back down for now
or leave it in the air if it's a never ending project like mine. Hope this
helped clear up questions to this small project. I hope I didn't forget
anything either! I did multiple searches and asked many times on how to get
the tranny out and no one seemed to know so now there is finally a tech
thread for people to use in reference. Good luck!
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