Anyone who has not driven a car with and AOD fitted is in for a surprise. It's a great transmission and 1,2,3,shifts are smooth as silk. However, the overdrive on the AOD tends to have a mind of it's own and takes some getting used to. The upshift is generally fine but can be way to early at light throttle. The downshift can be slow and often you can count to three before it kicks back a gear. I'm happy with mine I run 3.25 gears and at 110ks the engine is turning at around 2k.
The AODE on the other hand has an electronic control making the overdrive up and downshift a lot smoother. Have a drive of a 94-98 mustang if considering an AODE as they are as smooth as the ford Aust BTR 4 speed.
Has anyone fitted a BTR to a mustang and used an aftermarket controller??
The early ones from say an an NC fairlane have a sperate controler, they just need power and a throttle postion switch on the carb
I started looking into modifying the Megashifter (Megasquirt project) for the BTR though decided not to go there - not to hard to do from the information I had gathered. My test car is running a MSII CPU controller and using the separate NC auto controller. The owner is happy enough with it so no need to proceed further with my ideas.
Also got the conversion kit from PATC but they didnt include a neutral safety switch. Now I will have to source one of these locally.. Were there any australian fords fitted with an AOD? I didnt think there were, but maybe a wrecker with an 80s bronco or f-series might have some AOD parts.
Another drama we have come across is that the AOD being considerably larger than the C4 and my pacemaker extractors are touching the tranny sump. Can you bend the extractors or do you have to heat them first? Dont want to crack any welds on them.
The neutral safety/reversing light switch is a 4 pin switch available from most US parts stores at around $50US. They are widely used in US Ford boxes unfortunately, i've not seen them on an Aussie car. The part number you need is D6RY-7A247-B MOTORCRAFT SW-1391. Hope this helps.
My Motto - Don't get Caught! If you do, Blame Someone Else!
Yeah as it turns out the switch was with the transmission and what i really needed was the harness. There are a few places you can get these for $40-$50. To be honest im not really happy with the PATC kit because they didnt include longer bellhousing bolts and i had to source these from LT venables. Also didnt give me the neutral switch harness, the tailshaft is too long and need to either shorten it or get a different yoke. Both these items are on their site as "optional" to the kit. Not sure how they can say they are optional when i told them my exact model, engine, trans etc i was converting to AOD. Then to top it all off they didnt include a new shifter linkage to connect my standard 67 console shifter to the AOD. When a kit is advertised as everything you need to convert C4 to AOD it really should include EVERYTHING!!
So after many trials and tribulations the AOD conversion is finally done! Ended up getting a 2" shorter yoke from summit, along with a brand new floor shifter (old one was rusted out) and a shifter linkage. After my brother and i played around with the tuning of the TV cable and drove the car around the block a few times we believe we have the setting as good as its gonna get.
Next step is to take the diff to a driveline shop (can anyone recommend a good one?) and get the richmond 3.80 ring and pinion set put in to replace the current 2.79 ratio. Worked out last night that when the AOD shifts into 4th @ 45mph the engine is spinning @ 1100rpm! Bit low for my liking and makes for strange shift patterns. All in all though I am very happy with the AOD, once tuned it shifts smoother and kicks down more reliably than the C4 did..
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