[DeTomaso] GM Brake master cylinder

[Mike Thomas]

I must confess to CRS, but a couple of years ago I swapped out my brake
master cylinder for an early 80's GM unit.  Unfortunately, I can't find my
paperwork that had a part number, and one of our members is looking to do
the same conversion.

I believe it was a Cadillac or Olds unit.  Anyone out there with knowledge
on which GM unit it is that fits our cars?  74 L model.

Thanks
Mike Thomas