{"product_id":"pv2-brass-proportioning-valve-disc-drum-front-drum-rear-brake","title":"PV2 Brass Proportioning Valve Disc\/Drum Front Drum Rear Brake","description":"\u003cp\u003eOur review of the PV2 Brass Proportioning Valve finds it best suited for DIY restorers and mechanics updating classic GM street rod brake systems who need a straightforward replacement that balances front and rear braking. The single biggest reason to buy is its universal fit for dual-reservoir master cylinders and solid brass construction, which together make installation predictable and the valve resistant to corrosion in most street applications. It is a practical, low-cost repair part when a disc\/drum combination-proportioning valve is required.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits most dual-reservoir type master cylinders so it can replace a variety of older proportioning valves without extensive modification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFittings:\u003c\/strong\u003e Brake line ports are 1\/2' and 7\/16' which match common brake line sizes for easy plumbing during installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e Machined from solid brass for long-lasting resistance to rust and typical street use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Quality:\u003c\/strong\u003e Serves as the universal PV2 combination-proportioning valve for both 172-1353 (disc-drum) applications and 172-1361 (disc-disc) applications when appropriate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Designed to work on most vehicles, including many Chevy street rods and classic trucks, simplifying parts sourcing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe PV2 Brass Proportioning Valve is ideal for owners of classic cars and trucks running a mixed disc front\/drum rear brake setup who need a direct, low-cost replacement that will bolt into a dual-reservoir master cylinder. It is also useful for fabricators and custom builders assembling brake circuits on street rods where a simple mechanical proportioning solution is required.\u003c\/p\u003e\u003cp\u003eThose who need an OEM-grade precision assembly for high-performance racing or heavy-duty towing may want to consider higher-specification valves or adjustable electronic systems, since this unit is targeted primarily at street use and restoration projects rather than extreme duty applications.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSolid brass body offers corrosion resistance and a serviceable lifetime in normal street conditions.\u003c\/li\u003e\n\u003cli\u003eBroad compatibility with dual-reservoir master cylinders reduces the need for adapters or custom fittings.\u003c\/li\u003e\n\u003cli\u003eCommon 1\/2' and 7\/16' brake line ports make plumbing straightforward for most repair jobs.\u003c\/li\u003e\n\u003cli\u003eGenerally good value and easy to install according to user reports.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSome customers reported leakage, so careful installation and line sealing are important.\u003c\/li\u003e\n\u003cli\u003eBuild quality reports are mixed, so buyers should inspect for machining finish and threads before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePV2 combination-proportioning valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrake Configuration\u003c\/td\u003e\n\u003ctd\u003eDisc front \/ Drum rear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eSolid brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrake Line Ports\u003c\/td\u003e\n\u003ctd\u003e1\/2' and 7\/16'\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eFits most dual-reservoir master cylinders; common for Chevy\/street rod fitment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Reference\u003c\/td\u003e\n\u003ctd\u003e172-1353 (disc-drum) \/ compatible with 172-1361 (disc-disc)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe PV2 Brass Proportioning Valve is a sensible, cost-effective replacement for classic car and truck owners running a disc\/drum setup who want a simple mechanical solution that fits most dual-reservoir master cylinders. It delivers useful durability from its brass construction and straightforward plumbing, but buyers should check for leaks and inspect build finish on receipt. For routine street use and restoration projects it represents good value.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill this valve fit my dual-reservoir master cylinder?\u003c\/strong\u003e\u003cbr\u003eYes, it is designed to fit most dual-reservoir master cylinders common on classic GM and street rod applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat brake line sizes does it accept?\u003c\/strong\u003e\u003cbr\u003eThe valve uses 1\/2' and 7\/16' brake line ports to match common line fittings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this suitable for heavy towing or race use?\u003c\/strong\u003e\u003cbr\u003eIt is intended for street and restoration use; for heavy towing or track performance an adjustable or higher-spec valve may be more appropriate.\u003c\/p\u003e","brand":"POWERWORKS","offers":[{"title":"Default Title","offer_id":48253696147675,"sku":"B081Q6ZKCH","price":42.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51xEjgj9InL._AC_SL1500.jpg?v=1778329571","url":"https:\/\/gearmusthave.com\/products\/pv2-brass-proportioning-valve-disc-drum-front-drum-rear-brake","provider":"GearMustHave","version":"1.0","type":"link"}