Slitly vibration @ high speed

[T.Yazar]

I have a question

And yes I am a nerd and insane but Bear with me !

I had the cv joints ( front )replaced by aftermarket joints ( don't jump to conclutions please )

After this it seems to me that the car is vibrating more then it did before ! Not sure abouth it!

I red that if the cv joint fails then it shoud vibrate @ idle while braking

The question is i have tryed this and it vibrates the same @ idle Drive of reverse

Is there power going the te front axle if i switch the car to rear ? It is a 4x4 but does it reverse 4x4 ? If so the problem could be poor joints if not the problem is me. And sorry for my rubbish english