Wilwood’s tandem chamber master cylinders are fully machined from a High-pressure die casting of a premium alloy, it incorporates slotted mounting flange to accommodate mount centers between 3.22" to 3.40" and also features side-hole mounts on 6.40" centers. Master cylinder is has full separation between the front and rear chambers . Dual outlets allow for right or left hand plumbing based on mount location. Offers a total piston stroke of 1.10” and a 2:1 volume ratio between the primary and secondary chambers. Available in 7/8”, 1" or 1-1/8" bore sizes. Available also in a media burnished version and a black E-coat finished units. ********Add two bolt to four bolt Mopar firewall adapter to bolt this two bolt master cylinder to your four bolt Mopar firewall and add spherical rod end to bolt to your stock brake pedal*******