help me pleez!

[andys70c10]

Ok I just installed power steering on my 70, Now everything I'm using is used so keep that in mind & I know its better to go new but let me tell you my problem. I installed everything & at first I had no power steering, then I installed another pump(used) now I have power only when turning to the left, I have bled all the air out & you can here the pump working when turning left but not when turning right. I'm thinking it's the box because that sends the signal to the pump right? Now before I get bashed for using used stuff all of it was free, but I guess that free ain't always better. If anybody has suggestions on what might be causing this please let me know before I start tearing it all back out. Thanks.