So I changed out my HPOP and everything went great truck starts and runs great but my question is. If I put the HPOP gear on backward what could happen? I do not know if I put it on backward or not as I took to reservoir apart and resealed it. Also, I put new hpop lines on took the fuel bowl off cleaned it out, and put new seals on it as well. Got off track a little but what could happen if I did put the gear in backward? I have searched and searched but could not find an answer.