A4 plug when removing driveshaft
Here is a story about using a plastic plug....
A few years back I was pulling the engine and trans as one unit out of my '81 Camaro. A plastic plug was installed. Since it leaked a bit, I put a baggy around it and held it with a rubber band. Just as we had the engine/trans tilted down for removal, we got called to dinner. An hour later there was a good 5 quarts of ATF on the garage - the slowly leaking plastic plug had filled the baggy with ATF which was then heavy enough to pop off.
I have used a yoke ever since and not a drop leaks out the back.






