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hey guys,
I bought an old 9" third member with 3.50s. the ring gear has been removed but the pinion is still in the carrier. Will I still have to use marking compound and "align" or whatever my ring and pinion relationship when I reinstall the diff and the ring gear? In other words, is all the shim adjustment done in the pinion and not the ring assembly?
how 'bout if it put in a posi unit?

thanks,
matt
 

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The shim adjustment moves the pinion in or out of mesh with the ring gear.This is the only shim adjustment.What you will have to do is to set the carrier and ring gear in place and adj the carrier bearing preload and get the backlash adjustment correct.Use marking compund and check the mesh pattern and see where you're at.There's a good chance the shim there might be ok,but you cant assume it is..
 
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