Overheating Power Steering Pump _ Help

[Ryan5O]

72 Chevy, 350

Sorry for a repeat topic, but none of the threads that I read through had a solution.

I got a new pump and steering gear. The gear is for a 73. After the install the system was up and running great. A couple weeks later, my power steering pump over heats to the point that the gauge level on the cap was melted.

I suspected there was a possibility of air in the lines, but was surprised that it would take a couple weeks for the problem to show itself.

Iv'e since replaced the pump and fluid. I've jacked the truck up and turned the wheel nearly 50 times while adding the new fluid. When I start the truck, it will begin to squeal after about a minute and the pump begins to heat up real fast.

I dont have any kinks in the lines. I would be grateful for any ideas? I'm at a loss at this point and getting ready to take it to the shop.

Thanks in advance,
Ryan