It'* amazing what things have come to to keep production costs down. GM outsources things like this and I guess they are price shopping.
91 Park Ave- 134,000 miles still rolls fine. 92 Park Ave 178,000 miles-same, 85 Olds Regency 224,000 miles-rolled fine all the way to the junk yard.
And I seen close to a 100 Caprice cabs 91-95 go over 200,000 miles without a bearing incident, and when they did it was usually a dry one and whose to say what caused the seal to break(overheating brakes etc.)