New 8" Dual Diaphragm zinc plated power brake booster kit. This 8" power booster is hand polished before a yellow zinc finish is applied for a top quality finish. The booster mounting brackets are a direct fit to your factory firewall. Also Included in this kit is a new 1-1/8" bore master cylinder and adjustable combination valve equipped to work with front disc / rear drum or 4 wheel disc brake applications.