I believe they are actually a 4.10 not 4.11 (just to be technically correct)
I've been searching for a 4.10 posi chunk for my 71 C20 forever. Can't find anything around here! My wrecker also has the 4.10 non posi. I'm always blessed with non posi's for some reason.
One of my biggest gripes of old cars is WHY didn't they ALL come with posi rears?
Why was there a non posi "peg leg" crap anyway?
