Pretty sure 2000 would still be a mechanical odometer, my 2003 Ford is. And with having owned over 800 cars now, I don't ever recall having to replace a brake booster. Correction. 1978 Peugeot I still have.
I think any 24 year old booster sitting in the Arizona heat would be worn out.
Not sure whether a new or rebuilt one would be the best choice.
I use Rock Auto a lot but they are getting crazy stupid with their shipping.
Would like to find something decent local or on Amazon at a reasonable price.
Looks like Oreilly sells Brake Best. ?
Thanks