5.3 Power steering pump question
 

So I have an '85 K-10 that I'm doing a 5.3 swap in. The 5.3 power steering pump has a line coming off the side of the reservoir that the power steering pump currently in the truck doesn't have. I presume that's for hydroboost systems but not completely positive. The 5.3 came from an '04 1500 Suburban. Question is, just use the one currently in the truck (I don't even know if it will fit the bracket that came with the 5.3) or can the one that came with the 5.3 be used? Pics below: Thanks in advance.

This is the one that came with the 5.3, notice the line off the side of the reservoir. Doesn't appear to be a pressurized line.

Attachment 87721

Pump currently on the truck. Similar just without that 3rd line.

Attachment 87722

That is a return line for a hydro boost system. Yes you can use it.

I'll just cap it then! Thanks! I figured it wasn't anything big but just wanted to double check.

No problem!