Well hotshoe they feel like they need bled. But beings that this is my first big truck I am unsure about the brake booster under the driver door step. I used to rebuild Bendix and midland boosters and brake valves out of high shcool in portland oregon at a place called brake systems but shoot that was 89-90 I am rusty. also I was thinking of changing the master cylinder. Is that necesary with a booster? and I am not even sure the booster is for the brakes or an old lift for the bed? What do you suggest just a bleed?
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