Franks,

Sounds to me that the clutch plate got hot, and may have caused the
snap-ring to lose some of it's tension and pop out of it's retainer cut
in the hub.

Why did it get hot?

This one I can't answer--
pertrolis neglectis,, or you must have been hot rodding the van-----:>()

This one is a mystery .

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Terry--
74 Campmobile- (Clementine)
85 GL- (Delilah)
86 BMW 325 ES- (Eva)