The CV axles are not expensive. If it's deeper than that, then it can get pretty pricey. It may also be difficult to visually diagnose. You'll need an experienced eye. Hopefully I can help. If you can get both front wheels off the ground, you'll be able to spin the front wheels by hand. Do this and look at the CV axle. If it's bent, you'll notice it. Watch real close and see if there's any 'up and down' movement in the axle. It should be turning true and straight. If you don't notice any, move to the other side and do the same thing. If no movement is noticed, that doesn't mean the axle isn't bad. You may notice it better if you put the car in gear with it running and accelerate. Actually you'll need to have someone do this for you while you watch the axles. PLEASE do this carefully. Use jackstands and set the PARK BRAKE! This is a very unsafe method of checking this. I strongly recommend taking it to a shop where there's a lift and trained technicians.
Anyway, if you don't notice anything wrong with the axles, the problem may be in the differential. There's a 'decelerate' and an 'accelerate' side of the gears in the differential. If there's some teeth broken on the ring gear, it could cause a vibration under acceleration. This is something to consider. Try this. And be very careful if you choose to investigate by yourself.
Friday, November 14th, 2008 AT 7:16 PM