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Anyone install the repro side window regulators that the vendors sell, seem to be all the same part.
Called Willcox they don't sell them..they only sell the big gear.
The reproductions are made by Trim Parts, and are probably no better and no worse than factory originals........which were poor.
You can buy the rebuild kits and do it yourself, or send them out for rebuild. These kits have the improved parts and should work much better. America's Finest Corvettes in California is one place that both sells the parts and also does the repair work. I am sure there are others.