Vintage Thunderbird Club International

I've looked thru here and can't find any specific info on converting a 55 from Fordomatic to AOD. I am curious if the AOD will fit in the tunnel without floor mods? Thanks for any info or direction from someone that has done this.

I cant answer for sure but the AOD is a beefy trans. I put on in a 1964 Fairlane and absolutely despise it. Cant get the TV cable adjusted where I want it for shift points. Ive got a big bellhousing C4 in mine and its tight, I imagine an AOD would be very very close to needing some tunnel mods to fit.

Not sure about a 55, but a friend of mine put in an AOD in his 56. No mods to the tunnel, but did have to do some grinding on the frame

Thanks for the replys, I'm goin with a C4,and Flat O Products bellhousing kit. Now need to see if anyone has used a early Mustang shifter in the 55's

The stock shifter will work with the C4. That is what I used. The only problem is you will not be able to use low manually because not enough length in the TBird shifter. I just bent the rod a little (I think I just straightened it). Using the stock kick down linkage but had to lengthen it. If you haven't got the trans yet, get a 1980 or later, preferably from a floor shift car because of the angle of the shift on the trans (points up)

harleyhoot wrote: ↑Sat Dec 29, 2018 4:42 pm Thanks for the replys, I'm goin with a C4,and Flat O Products bellhousing kit. Now need to see if anyone has used a early Mustang shifter in the 55's