There were 2 options for pumps for the k series. One with a Vacuum boost and one without. Not sure if that changes the valve and spring? I bought the one without vacuum boost/assist and the valve and spring looked the same. Headed back today to get the vacuum boost model to see if it's different.
Thanks for the help!

I know both the valve and spring are a little bit different, I'll check and see if I can find the valve I took out.

Hey Bill,
I'm doing the jeep steering conversion on my dad's gto. I bought a new pump, the insert adapters from Lee Manu, new hoses, getting a jeep box this week. I was wondering about the pressure control valve in the k series '76-'80 pumps. I bought a pump for a '77 k series from auto parts to get the control valve. I removed it and it looks identical to the one I pulled out of my pump. Do they look different? Thanks, Brent