I need to replace a bad wheel cylinder on my '98 ZX2. My Haynes manual talks about using some bolts to push the drum off of the hub. What size and length bolts should I get?

 

I do not remember the size bolts to use, but your main concern will be to be able to back off the self adjuster if you have to, in order to remove the drum. Unless the drum is rusted to the hub a few clunks with a hammer will usually break the drum loose from the hub. You may not need the bolts to remove the drum . Many times prying evenly on two sides will get the drum off