1999 Chevrolet Silverado 1500 Q&A

1999 Chevrolet Silverado 1500 Question: whining noise in drivetrain

i have a whining noise in the drive train when going 30 mph or higher all fluids are ok , trans shifts ok 4 wd works ok ,can't figure out what is making the noise. put truck on jackstands so it's not tires any guess ? -
Answer 1
No way to know for certain, but my '99 is driving me nuts and breaking me with growling in the front axle area. Dealer replaced both wheel hubs and didn't fix the problem. Transfer case? Front differential? Front axle bearings? If you think your noise is from the middle to rear of the truck, it's like the center support bearing in the driveshaft. -