[TrevDog]

I was poking around looking for info on a new project truck and read about your shudder.

My daily driver is a '98 S-10 Extended cab. It does the very same thing, shaking at 20-25 MPH in any gear. At highway speed the shake is still there, very slight, but enough to make the rearview mirror blurry.

I've got new tires, and eliminated a ton of shakes, rattles, and buzzes by replacing all three u-joints. Two were absolute toast! It was smooth as glass for about 120 miles, then the shake came back. Nothing like before when the joints were practically falling out, but it is there.

I've been told the center hanger bearing might be worn from the bad joints. I'm going to have it changed, but wonder if the clutch might have something to do with the vibration, too.