Proportioning Valve The kit is designed from

The kit is designed from CNC-laser cut and formed steel plate

With adjustable mechanical and vacuum advances and a simple one-wire hookup

- Requires less shim stack for negative camber than OE arms

or 220-13189 for retrofit kit

This adjustment lets you fine tune the front to rear braking balance by proportionally decreasing the rear brake line pressure

Proportioning Valve The kit is designed fromThe new generation of adjustable proportioning valves combines the latest refinements to deliver precise pressure metering and strength from a compact forged billet design. Pressure adjustments range from 100 1000 PSI and provide for a maximum decrease of 57% in line pressure, the most of any available valve. Adjuster knob with fine thread tuning provides precise pressure adjustment. This adjustment lets you fine tune the front to rear braking balance