I have an 87' chevy 1/2 ton pick-up and when i decelerate i hear a rythmic
knocking sound coming from the rear axel doesn't happen all the time. but
it's getting worst.. any suggestions would be welcome
First, stop driving it. Second, pop the differential cover and have a peek.
You're looking for broken ring or pinion teeth, broken teeth in the carreer
gears, or metal chunks/flakes/shards in the fluid.
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