Part #’s for my ‘87 C10 water pump seals that I thought I’d share to save somebody else some time. The first time I’ve seen an o-ring with a 90 degree bend. My external leaking water pump self sealed at 9000 miles, 
, now I’ve got parts for a bad winter day project. Credit to Steve from Shoodaben Engineering for his YouTube video instruction;
, now I’ve got parts for a bad winter day project. Credit to Steve from Shoodaben Engineering for his YouTube video instruction; 