hyd clutch pedal assembly from late model chevy truck?

[chevybill]

Have any of you installed a late model hydraulic clutch pedal assembly in any of your trucks. I have a nv 3500 for my 70 and I am going to a junkyard next week to try to find a pedal set to use or graft the hyd clutch part over to my original pedal assembly.

Does anyone know if a tri 5 (55,56,57) chevy pedal assembly will fit in our trucks or perhaps an impala (thinking about the fact that impala wheels are 5 on 5 like a truck wheel pattern).

thanks for your replies