1985 Other Dodge Models Power Steering Bolts Missing

Found Power Steering Pump has missing adjustment bolts. Unit rotates but adjustment bolts must have fallen out somewhere. Still have rectangle adjustment bar. What size bolts do I need and where do I find a picture of how to bolt this back together. Car runs great, but since power steering belt is loose, it's a little tough to turn.

UPDATE: Got it working. Went down to NAPA and they gave me a #10 bolt. I got it in there and tightened up - no wobble on the shaft, so I think i'm set. I'll just have to keep an eye on it