Hello Suzuki fans

My company used to buy Metro diffs under the Suzuki part numbers 27509-63B81 or 27509-63B83. This was back in the 1990s. Now I am being told these are not Suzuki part numbers! The GM p/n is 30024217.

Can anyone help? Is there a cross-reference database anywhere, etc.?

Thank you

Beth Silverman
Azure Dynamics