I've also installed an AOD in 55Bird. When I first did it I felt like I was on my own as I couldn't find anyone who had done a TBIRD yet. I finally did it, even though I blew the first one to pieces! Trans builders' fault not mine, luckily. I've been using this one for years and have made a bunch of trips in it. I was also able to figure out how to use the original floor shifter and get all the gear positions. This is something they said wasn't possible. I have had no issues with the gear drive starter. Altho, I miss the sound of the original. It always sounds to me like it is weak, but that's just me it is spinning the engine just fine. Just sounds like a Chrysler

. I've never had to replace the starter. I did all this in around 2008. I would not hesitate to do it again. I'm glad I learned how to do it all. My setup is a Bendtsons.
A L A N F R A K E S ~ Tulsa, OK