Another power steering question

I bought a power steering pump from o reily auto and the 302 pump they gave me has a 1/2 or 9/16 thread size or so. So i bought a new pressure line from auto zone and the part that threads onto the pump is about a 3/8 size, i ordered one for the 302 and its the same size as the one for my 250 i6. So i was wondering is the pump off in size or is the line not the correct size.

 

Can you replace the pipe bushing on the back of the pump?

 

Im also having an issue with my hoses fitting my power steer pump. I know there are o ring style pumps and flare style pumps. Did you make sure your year hose and pump match? There are three types of pumps I know of.

 

Could some one post a picture of there pump from 76 77 and the line goin into the back of the pump?

 

After mid '76 hoses used 0 rings, won't fit earlier style...

 

Can someone tell me what thread size it is on the pump that the line theeads onto