Transmission Options

Well, a few weeks ago, my 74 Duster (slant 6, A904, 7.25 rear) broke its flexplate and damaged the torque converter.
Since i've begun tear down to a shell to do a basic resto-mod, I've also decided to part ways with the 3 speed auto.
I want to get a 4 speed overdrive or 5 speed standard.
Plans are to use it in road course and autocross.
So although i'm not looking to buy right now, i want to compile options and parts lists.
Any info and help is appreciated


I went with the 2004R Gm trans. Bought the TCi adapter but I don't know if they make an adapter for the /6. I love the way the car drives and runs. I get great gas mileage and have plenty of power on the low end. Top speed is 175 MPH with 3.73 gears!! You can use a pretty low rear gear (4.10/4.11) with the 2004R trans.

treblig