1) This Is A Universal Combination Valve, An Exact Copy Of The Original.

2) AC Delco Style Proportioning-combination Valve In Brass. Carry Individual Proportioning Valves For Your Customized Application. These Combination-proportioning Valves Are Based On The Popular AC Delco 172-1353 (Disc-Drum) And 172-1361 (Disc-Disc) Valves.

3) When Upgrading Your Vehicle From Drum To Disc, These Small Items Are A Must.

4) These Components Ensure Proper Fluid Transfer And Contain A Residual Pressure Valve For A Proper Braking Feel.

5) The Valve Contains A Low-pressure Shut-off Valve And Warning Light Switch To Ensure Driver And Vehicle Safety Should Your Brake System Lose Hydraulic Line Pressure.

6) Aftermarket Imported Master Cylinders With Built-in Adjustable Proportioning Valves Do Not Feature This And Could Put You And Your Vehicle At Risk.

7) Package Includes: As Shown In Our Pictures.

This Item Doesn't Come With Installation Guides. We Highly Recommend Professional Installation.