Technical 9.3 olds/pontiac posi spiders

Does anyone know if Pontiac/Olds 9.3 posi spiders are all on their own? Can you use spiders out of a Mopar, Chevrolet, or any other Dana style powerlock?

 

http://fabcraftmetalworks.com/cgi/commerce.cgi?preadd=action&key=RA5-31096

 

Thanks for the link.. I am still wanting to know if they are the same for other Dana powerlock posi units. Any information would be appreciated. Thanks

 

Just to follow up, Dana 44, Mopar 8 3/4, 55-64 Chevy powerlock positrac spiders all are the same as Pontiac/Olds 9.3.

 

I have a spider set out of a 57 Pontiac open carrier don't know if they are the same.

 

They are used.but if you can use them I can let them go.pm me if you want them.
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