95 protege left side problem

hi everyone i got a 95 mazda protege here is my problem i replaced the entire left axle and when i accelerate i feel a very hard vibration on the left side i jack up the car and i saw the vibration comes from between the transmission and axle i apprecite the help thanks.

you sure the circlip is fully engaged in the transmission output shaft and that there is nothing stopping the shaft from going in completely....Mike

Often times new axles come from the factory and they have shot peen, or basically, sand particles from blasting stuck between the groove and the circlip so the clip cant compress the engage into the trans. Take axle out and inspect the clip and groove.