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I've narrowed down the two choices for master cylinders that will work for an off road toy. I have Ford dual piston front calipers and huge GM 1 ton 3.xx" single piston rear calipers. In the past I've been able to lock up the rear 37's on the street at 1/2 brake pedal.
P2424 is a Chevy master cylinder for various 3/4 ton Chevy trucks. It has a 1.125" front brake MC bore, and a 40mm rear brake MC bore. According to my calculations I'll achieve enough line pressure with the 1.125"bore for the front brakes, but a 40mm bore nearly halves the pressure to the rears. How will this feel to the driver as far as a pedal that's not too stiff but doesn't go to the floor?
M2423 is the other MC I have, which is also from a 3/4 ton Chevy and is a straight 1.125" bore MC, according to Napas website. I'm assuming this will simply apply the same pressure to both front and rear.
Which would you choose? The near future of this truck is to swap the 37's for 40-42's with no additional changes to brakes.
P2424 is a Chevy master cylinder for various 3/4 ton Chevy trucks. It has a 1.125" front brake MC bore, and a 40mm rear brake MC bore. According to my calculations I'll achieve enough line pressure with the 1.125"bore for the front brakes, but a 40mm bore nearly halves the pressure to the rears. How will this feel to the driver as far as a pedal that's not too stiff but doesn't go to the floor?
M2423 is the other MC I have, which is also from a 3/4 ton Chevy and is a straight 1.125" bore MC, according to Napas website. I'm assuming this will simply apply the same pressure to both front and rear.
Which would you choose? The near future of this truck is to swap the 37's for 40-42's with no additional changes to brakes.