power steering pump seal blowing out....5 times now

I believe your are talking about the gear box instead of the power steering pump, correct?

Is it possible that your gear box is not original to your car and the seals you are getting are not correct for your box.

I went through a seal problem on a 1969 Olds Cutlass a couple of months ago. The correct pinion seal would not work. I ended taking the original seal to the parts house and found out the rearend was not original to the car. It was a 72 rearend and it took a different seal. Bought that seal and fixed it.