Bolt a non-boosted master cylinder to your 1941-1948Fits Ford passenger car frames original "X" member. The dual feed, 1" bore master cylinder works with 4-wheel disc brakes or disc/drum brake setups. Both fluid outlets are 3/8" -24 inverted flare female. Kit includes master cylinder, pedal assembly and hardware. Learn more about selecting the proper master cylinder for your vehicle by reading our tech article.Brake System Selection. NOTE: Will NOT work in conjunction with the factory clutch pedal. Intended for use with an automatic transmission.