cliquedoee

Hello everyone, recently my Maxima started shaking at highway speeds, it is a 2007 with 123k miles i noticed the shaking got worse when i accelerated to overtake someone, or I accelerated at high speeds, when i coasted the car rode smooth as silk, so i pinpointed it to one of the CV joints being bad but i decided to bite the dust and spend the extra money and replace them both today after much cussing and swearing i completed the passanger side quickly, however when i installed the driver side now matter how many times I push the new axle in and it clicks, the Transmission output shaft starts seeping oil, I bought both sides from autozone they are rhe Duralast ones, frustrated i wrestled with it for 2 hours and nothing it would keep seeping oil, and when i installed the old one, dry as a bone, no leaks from the seal, what is going on?