Power Steering Pressure Hose

[kenny4454]

I noticed my power steering pressure hose was leaking in my 67 Chevy C10. When I looked online for the hose it appears it is not available for this year. I am wondering how I determine which hose to purchase? Is there a way to identify what year the power steering gearbox is in my truck? Is the fitting on the end of the P/S pressure hose that goes into the steering box one that has an O ring fitting, or one that has a flange on each side? My lines appear to have flanges