[MINIHEMI46]

Yesterday I was just driving down the road for 30 to 55 mph because of this country road, stop lights and little towns. I didn't hit anything on the road, no pothole, no roadkill, nothing. I was going through the gears (5 speed) and the PT all of a sudden started shaking. Nothing through the steering wheel, the PT itself was shaking like a tire really out of balance so I let off the fuel and shaking stopped but still going about 45. I easied back on the fuel and it started shaking again. So again let off the fuel and it smoothed right out. So I speeded up to about 65 (now the country road is a country freeway) and it went away. As long as I stayed above 65 to 70 very little if any shaking. Anything below 50 to 25 it was shaking, you could feel it on the seat and floor but nothing in the steering wheel. I think the only thing it could be is a CV joint because of letting off the fuel and it smoothes right out. So any other ideas besides the CV joints?