ac delco voltage regulator part number for 68 L34?

[KurtS]

All covers should be screwed on. I have seen 2 different kinds of screws used.

Ed, I recognize that reg pic.
Here's another shot of the 05E date. Note the pencil marks on the side.

[jeff68]

Note the pencil marks on the side.

Kurt-
Interesting that you noted the pencil marks.  I just restored my original regulator.  I documented the pencil markings and re-applied them in the same location after the base was re-plated.  It's good to verify that these were original markings.
Thanks,
Jeff

[MyRed67]

Was I used in the month date code on these VR's?

[bertfam]

Was I used in the month date code on these VR's?

No, the letter I wasn't used.

Ed