Yes! It’s a large grommet that fits in the trans tunnel, without it you will rust out the floors even quicker. And you will need to remove the blower unit again to gain access.
Appreciate the pointers on the fuse block, I quickly found out how special that thing is and decided to stick with it.Hi Thomas -- If you can provide a little more on the alternator, I can try to help.
As to the notion of replacing the fuse block with a modern blade style block, make sure you understand the power distribution built into the stock fuse block behind fuses 4 and 5, 6 and 7, and 8 and 9. View attachment 65130