Proportioning valve restoration (1 Viewer)

[Engineer8000]

I obtained this a while back (thanks @65swb45)

Tore it apart and cleaned it out, replaced the piston and u-cup seals with the kit from Muscle Car Research. Cleaned up the rusted end caps, tried my hand at home Ni and Cu plating (Instructables.com), I think they turned out pretty good.

finished product:

 

[Red Panda Roll]

Edit: I asked a question about this but then found a disassembly of the same kind that is on my truck. So ... disregard this. Thanks for the pictures, though.

 

[Engineer8000]

I found these diagrams of the bypass and proportioning valve internals and functional description and a Toyota tech training manual on brakes: