nhraman you got the Fel-Pro Numbers BACKWARDS;
O-Ring for Oil cooler
GM 97188663
is a
Fel-Pro 35758
O-Ring for bypass pipe (lower)
Gm 94011603
is a
Fel-Pro 35756
I got my pump from NAPA. I had to go to the dealer to get the new o rings and bypass pipe seal. I think one of the o rings was...