o-type posi
#3
Yes,the clutch packs from the older style 8.5" 10-bolt posi units are the same.The ones with the "S" spring like what you have.These clutches are a knurled steel,& have square tabs on the ends.The clutches for the Eaton posis will NOT work. GM discontinued the clutches last year,but there are still some sources to get them.
#5
I bought a bunch from GM when there was word that they were stopping them,but I do not want to sell mine.I've talked with a few people that got them from DTS & a few other differential companies.Ratech also had them under part number RAT-1809,but I do not know if they still have them or not.Have you looked at your clutches yet.You might be able to retain your existing clutches,& just shim them tighter.They weren't assembled very aggressively back then,& usually have room for a bunch more shim.
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