Two problems related to rear suspension have been reported for the 1999 Chevrolet Silverado. The most recently reported issues are listed below.
"the truck" shakes like "a leaf" at speeds above 50 mph.
When truck reaches speeds of 60 mph or more, the rear end of the truck, as well as the steering wheel, vibrate and ride is not smooth. ( dot number: tire size: p245/75r16 ).