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ApplicationUniversal Compatible for Disc Drum Proportioning Valve. Works on Both Cars & Trucks. Compatible for GMC, compatible for Ford, compatible for Chevy...SpecificationReference OEMnumber: PV4 , PV-4 ,172-1361 Package Includes: 1x Proportioning Valve as pictures showNote* Please check your number before purchasing!! * Professional installation is highly recommended (No Instruction Included) * For any needs please contact usWarranty: one year warranty for any manufacturing defect