So I know i have the 175H caliper and I have the pads I need, now Im not sure about the rotors. It's not a hub, just bolted directly to the wheel with 4 bolt it appears.
http://www.airheartbrake.com/disc-chart.html
So the chart is on there and I was leaning at the 3300-1000 rotor but it's only 6" and it looks like the 175H needs a rotor with 7" or greater. So maybe the 3301-1003? However the rotor thats on it now only has 4 bolt holes, however it may have been put on in the 80s and may have been revised.