I replaced mine last summer. I've driven the truck about 9000 miles since, and it's making the same noise. It's a higher pitched whine that comes and goes over about 10mph. I've heard that it's due to the fact I left the dust shields on with the new bearing. I need to replace that and my rear shocks. I think my u joints are going too. I'm getting a bit of vibration.
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milanplechata@hotmail.com
Lexington, SC
1968 c/10 lwb 250/3 on the tree
1970 CST/10 lwb no motor/trans
http://communities.msn.com/6772GMTru...68longbed.msnw
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