part number for vacuum brake check valve

[87grandnat]

anyone have the part number for the check valve you are supposed to use when you switch to vacuum brakes?

Thanks,
joshua

 

[87grandnat]

i have heard these are needed when converting to vacuum brakes?

Joshua

 

[87grandnat]

Ttt

 

[87grandnat]

Ttt

 

[Welby]

I replaced mine, but can't think of any part number. It was just a standard item in the HELP! section of the auto parts store, if that helps any. Maybe ask at the counter if not sure, just tell them you have an N/A Regal and need a check valve for it....