Re: 1986 Blazer 8.5 Gov Lock Posi options
We had an 87 3/4 ton suburban that would chatter the same way especially after driving straight on the highway for extended periods. Despite what additives we used, the chatter never went away. Other than the annoying grumble when making a sharp turn, no harm resulted in 15 years of use. It chattered since day one.
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