When I bought my car in August, being a 67 standard 289, I assumed it had a C4 transmission. Since it was shifting and driving, I hadn’t paid much attention to it, but there were some things that weren’t making much sense. For one thing, there was no vacuum modulator hooked up. For another thing, when I replaced the transmission coolant lines a few weeks ago, one of them didn’t fit right at all.
Having finally gotten the motor sorted out, I decided to take a serious look at it tonight.
Yep, it’s an AOD.
I’m actually pretty thrilled with the discovery since that was on my list of possible upgrades to make this a good driver. Of course, at the very least it needs a new parking pawl and it may be due for a rebuild, but it looks like someone else did the heavy lifting on this conversion.



