Power Steering pulley is offset on my 68 Barracuda 340.

I took my pump to AutoZone and they sent it to Atsco. The incredible part is that it took only 8 days to get it back.

I looked at an instruction sheet sent back with pump, and it does mention that you really can NOT press the pulley back on by yourself because the other end of the shaft needs to be supported, but the resevoir is in the way.

Have the pump rebuilt to factory specs, but be sure to measure the pulley distance (from the pump) before you send it in.