As you may or may not be aware I am undertaking an EV build. I am converting an old 1979 Holden Gemini to an EV. After much research, I have found that the best DIY approach is to attach an electric motor drive directly to the Bell Housing of the stock transmission. To do this, you need to mate the input shaft of the transmission with the output shaft of the electric motor. To achieve this, you need an adapter plate and a coupling made up. Each transmission is different, thus I have begun creating a library of sorts to help you find some design ideas or files to suit your make and model. Some manufactures of the adapter plates look to incorporate the existing clutch/flywheel combination into the design also.
Please use these files at your own risk. I can not take responsibility for a design that does not fit or work. This library is intended to help you research and provide a starting point for your EV conversion.
VW Beetle to Fit an AC-51 (2015)
Electric Mustang Drivetrain for 1965-1970 Ford Mustang/Falcon/Ranchero (2018)
Nissan Leaf adapter Plate (2018)
As this list expands, I will organize it much better! If you want to contribute to the list, please drop a comment below! Stay safe legends!