Question about 1998 Chevrolet K1500
Diff can get noisy if the lube is low. Have you checked the level?
Noise can also indicate gear wear or a bearing problem but I can't hear that from here so you need a good tech (with lots of experience) to listen to it both on the road and with the vehicle up in the air.
If it's either a bearing or gear problem, though they can be rebuilt, parts are expensive and "setup" is precision work or it will quickly fail again. To save $ and time, I recommend replacing it with a complete end to end unit from a scrapyard.
Posted on Jul 10, 2010
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Posted on Jan 02, 2017
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