need diagram for rockwell differential for a freightliner semi?

have clunking sound and would like to know wat parts to buy to repair instead of whole chunk being replaced , sounds only eminates when heavy load is upon units axles..anyone with a free digram willing to help

2009-12-06T09:02:38Z

fax machine number is 386-638-0089

John T2009-12-06T08:42:40Z

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if you have a fax freightliner im memphis tn will run your numbers and send you what you need or look up rockwell on the net they should be able to help you