Power Steering Box High Pressure hose

[Oldscarnut]

Could someone please state which of the two, LARGER or smaller diameter on a 1986 Steering box is the high pressure side. There is so much conflicting information. I stand on the drivers side of the car where the steering box is. The holes are offset and they are different diameters. Please someone tell me...or is it a secretthat fit 2 out od 3 They are clearly visible. I have a half dozen hoses and adaptors to get from a 68 Olds 350 pump to a 1986 STEERING GEAR. I am getting closer, then someone tells me the high is on the fender side. WHAT THE H? LARGE OR SMALL HOLE????? Keep it simple! I have all I need in parts!

Chuck

 

[ELCAM]

Early box.
Pressure hose fitting is 11/16 -18.
Return hose fitting is 5/8-18.

Later box (metric):
Pressure hose fitting M18 -1.5.
Return hose fitting M16 -1.5.

 

[Oldscarnut]

Early box.
Pressure hose fitting is 11/16 -18.
Return hose fitting is 5/8-18.

Later box (metric):
Pressure hose fitting M18 -1.5.
Return hose fitting M16 -1.5.

That helps a lot, thank you!