Size of 3 way heater oil connector
 

Been searching forever it seems to confirm. I have replaced my coolant system kind of piece by piece and do not have any leaks.
I cannot confirm the tee that goes to the water pump/heater core/oil cooler. I want a metal one and would like to have it ready,
I think it is 5/8 x 5/8 x 3/8 does anyone have there's apart to confirm. Mine has been cleaned up a few times but I want to replace it.
Thanks.

Thttps://www.finditparts.com/products...ogies-35-h1953his is what I used on my 89 when I replaced coolant hoses a few years ago. The size for mine was 3/4 x 3/4 x 5\8.