wondering what can be the problem in my classic.. everytime when I give it some in 1st and 2nd the rear of the car shakes a lot , not long since the wheel bearings were changed , and I recently put in a new altough used driveshaft.. its sort of like a slight vibration at first then begins to shake until I gain enough speed and put it in 3rd

 

have you checked the wheel bolts are tight?

 

they are tight yes , going to put my 16" under and see how it is then