I have a 1995 Chevrolet 2wd S10. When driving a get a vibration at about 40 mph or so and it somewhat smooths out at about 70. I don't really have much of a place to take it apart right now to figure out what is going on. I do feel the vibration in the steering wheel. What might be there first things to check? Hopefully I can get a little space and time to look at it tonight. Thanks.