For all, check out Amazon.com for your hubs, many to choose from and great prices, free shipping over $25.00. Additionally you can contact Kore3 and order their kit and you can upgrade to 98-01 LS1 or Z06 Calipers using the C-5 PABs with the 98-02 S-10/S-15 spindles and then you can go to a 12.8" rotor (17" up required).
Kore3 can help you with all your parts to upgrade to LS1 or Vette Z06 Calipers. They even carry the calipers, PABs, their custom mounting bracket to the S-10/S-15 spindles. Email or call them, they will get you squared away fast and have project done right the first time. If anyone would like to see a how to video check out GTSdesigns for the LS1 and upgrade and 98-01 LS1 Rear disc brake upgrade.