Aluminum pressure plate Q's 3032015399

[tuned6]

Thanks for all help in advance.

I have 2 different pressure plates that have this same Sachs # 3032015399

They are a pull type 915 pressure plate.

I have one that is very light. I know it is an aluminum pressure plate. The other I bought recently in a package deal with a fellow Pelican expecting to get the same pressure plate but even thought this pressure plate has the same Sachs # is is about twice as heavy.
Would any of you know if I ended up with a Cast pressure plate. Before I say anything to the seller I wanted to make sure I know what I am talking about.

I will weigh it today so I know the weights and get back to this thread if I need to but I imagine someone knows what's up.

Thanks,
Christopher