Here 12 wrenches that I have gathered. They all seem to be similar in nature and may all be Delco related.
Pic 2 common 90257 and common 90258 with centered lug.
Pic 3 heavier R752 and heavier 90258 with offset lug.
Pic 4 spark plug 28248 and even heavier conn rod 90559.
Pic 5 95095 and open end 93704.
Pic 6 elusive 95591 and box end 93704.
Pic 7 28282 and 96080.
Anyone know of any others?
Anyone know of solid evidence to exclude these as Delco related?
Anyone know which wrenches might have been supplied, or intended, for which particular light plant?