Rock Solid Brake Proportioning Valve Bleeder Tool For PV2 And PV4 Disc And Drum Systems Works With Gm Valves And Ac Delco 172 1353 And 172 1371 No Sweat Quick Bleeding
✔️ Locks low pressure valve for fast GM PV2 PV4 brake system flush
This brake proportioning valve bleeder kit is a dedicated service tool designed for automotive technicians and DIY mechanics who need to purge air from disc and drum brake circuits quickly. It plugs directly into non-adjustable GM combination units to hold back fluid pressure while you isolate the master cylinder. Mechanics typically reach for this handy gauge when rebuilding calipers, replacing wheel cylinders, or performing full system flushes after a hard line swap. You get one heavy duty steel adapter that bolts right onto the port without damaging the original seals.
✅ Direct replacement for AC Delco 172 1353 and 172 1371 adapters✅ Secures the internal exhaust valve to stop pedal pumping during flush
✅ Compatible with standard GM PV2 and PV4 proportioning assemblies
✅ Machined from hardened steel alloy built for repeated garage drops
✅ Single unit package arrives ready to bolt straight onto test ports
💡 What does a brake proportioning valve bleeder tool actually do? Mastering these handy service rigs takes a bit of practice, but knowing how they bypass the factory pressure split makes your flush routine faster and less messy. Grab a steady helper and watch them tackle these job sites: - Route fresh fluid through the closed valve to trap old residue and trapped air in the slave cylinders - Keep the main reservoir pressure steady while you crack open individual wheel bleeder screws - Skip the buddy pump setup by locking the proportioning circuit for solo flush cycles and tighter pedal feel
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