passenger side cv shaft won't stay in
 

I just replaced the cv axles on my 2015 Ram 1500. there is still a vibration in it. I went back underneath and the passenger side is a little loose again. When I replaced it, it clipped in like it's supposed to, but is coming out again. It has a lift kit on it and vibrated terribly when when first got it. When I replaced them both the shafts were shot. Why is it coming out again. when it is clipped in, the shaft has some play in it. I know that shouldn't be happening. How can I fix it. I put in over $500 in it.

Thanks.

Are the axles overextended due to the lift?

I didn't realize it, but my wife ordered the wrong shaft. She ordered a standard one instead of a long travel high articulate cv shaft. I ordered the correct one and will be here next week. Hoping that will eliminate the problem.
Thanks.