Recently, I've noticed my car has a wicked shaking/vibrating feeling when accelerating but ONLY at speeds of like 50-60 then stops and then from 61-70 it starts again and stops at a little over 70... I have no idea what it could be but it's only at those speeds.. Any ideas? I've had the front passenger wheel bearing/hub replaced, both control arm bushings, I had my lower steering shaft replaced, and all my tires replaced and got an alignment (all were needed anyway so it wasn't a waste) the shaking has reduced a little bit but not much...

 

Does it do it only when accelerating, or all the time at those speeds? If it does it only under acceleration it could be a CV joint.

I just replaced the passenger side half shaft and that was the symptom. Shaking under acceleration, but not when coasting.

 

I've been neglecting to replace my CV boots on both sides because of lack of funds so I'd imagine that this would be the problem. I kind of suspected it to be but was not sure. I'm assuming this most likely my problem then. Thank you!! Any idea how much it costs to have one or both replaced??? Including the joints? I'm assuming the joints may need replacement because I've been driving like this for a few months now... Hopefully I can push it until January when I leave for college and have my parents pay for it as a christmas gift haha

 

About $500 a side for parts plus labor.

Get MINI rebuilt half shafts.

Put the car up on jack stands. With the car in neutral, rotate the wheels and watch the half shafts. Only replace the one that is not rotating about its axis. It was obvious on mine.