Engine/Body/Frame Grounds

[TheWhiteElephant]

I am going through all the ground locations on my 1973 K20 and want to know if I have all the bases covered. Here is what I have so far:

1) Ground from (-) battery post to alternator bracket (soon to go to engine)

2) Smaller ground wire from (-) battery post to radiator support

3) Ground from radiator support to frame--grounded at same bolt on radiator support as the above ground

4) Ground strap from body to engine block

5) Ground from fuel sending unit to frame

I haven't yet gone through the taillight harness, but I'm pretty sure I have a bad ground there as the taillights will turn off when I turn on the headlamps.

Anything else I missed? Thanks in advance.