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Would you please tell us more about what information you are requesting ? I gather you might be asking if you can install the 97 Drum brake system on your 2000 Truck ?
As far as I know, yes, you will need to change those parts as well. If you have abs you'll have other issues as well.
I'll opt out of this and return the question to the queue and hopefully someone will have some first hand info on this issue.