correct routing for the engine oil cooling lines
 

1990 Chev K1500 Z71 350cid extra cab
vin # 2GCEK15K7L1255800

I need the correct routing for the engine oil cooling lines (not tranny).

It appears to me that the top port at the oil filter adapter connects to the bottom port at the radiator and bottom port at the oil filter adapter connects to the top port at the radiator. Mine is taken appart so I can't just look and see.

Hope someone can check out their system and see how it's connected
or
someone has access to the dealer/factor info and can look it up via the VIN #

I'm not sure how it makes a difference but would like to get it right.

thanks