Mechanics

MY G2500 JERKS AND SHAKES FROM BACK END AT CONSTANT SPEEDS OF 45MPH+.

1993 GMC Van • 138,000 miles

My van will jerk at a constant speed of 45MPH or more. It is a continuous jerking motion and will sometimes make clanking noises. Is this typical of a rear axle issue or something more like the U joint or drivetrain?
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Jbumgardner4
May 2, 2012.



Check the whole drivetrain. It could be more like ujoints or center support bearing if yo have one.

Hmac300
May 2, 2012.