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73-87 Chevy _ GMC Trucks => Brakes, Frame, Steering & Suspension => Brakes and Braking Systems => Topic started by: muleystruck on March 31, 2019, 06:55:23 PM
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hello all, my 86 Scottsdale has a 1J55 brake code on the SPID. So what does this mean? All info is greatly appreciated.
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Is it a K20? Heavy duty brakes is what it means. Most likely 13" and the larger wheel cylinders, all metal master cylinder.