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I am going to delete the ABS on my '97 1/2 ton. I've had it since new most trucks this system have pedal issue-variable feel, pressure needed. I need a disc drum prop/distribution valve that has metric fittings to use. I know my 92 truck had rear ABS so I guess something earlier either truck, B body or F body. I've heard the aftermarkets are hit or miss and also have SAE fittings. Anyone have an idea on a GM one still available.