Brake Proportioning Valve Bleeder Tool, Valve Bleeding Tool Compatible with GM Combination Valves, PV2 PV4, Disc/Disc Disc/Drum 172-1353 172-1371 (Blue) | Compatible with GM Combination Valves, PV2 PV4, Disc/Disc Disc/Drum 172-1353 172-1371

worked good

Arrived on time and works well

perfect. so perfect I never took it out 🤣🤣

Indispensable for brake work on ANY oldskool SBC chevy

For me I don’t know if it works are not I couldn’t tell any difference. Concept sounds good though.

A must have tool if your going to bleed brakes.

This is a simple tool so it's hard to screw it up. There are cheaper ones that are plastic but I like these.

Doesn't work on 1969 camaro proportioning valves. Too large for hole.

Part does what it’s supposed to

This is the one to buy , don't not the plastic kind . Worked perfect, was delivered quickly and is part of my tool box now .

works as promised/

Worked better than the plastic ones