Help needed for power steering 55 first series

[Gundu7475]

I'm currently in the process of restoring my 1955.1 Chevy 4400. My question is about power steering. I'd love to put power steering in the truck but not sure what fits and what doesn't. I'm obviously new to this. I've gotten some parts from classic parts and old Chevy trucks and the people on the phones aren't too sure if the parts that they typically sell (for smaller trucks 3100,3600 etc) will fit my truck. It's a 1.5 ton. Thanks for any help. I need to know exactly what to buy to make the conversion. Thx again.