Brake Booster and Master Cylinder Question

[mmsidaho]

I've read some other posts regarding master cylinders and it has been indicated that for trucks with disks on the front and drums on the back, like my 1972 C10, the two reservoirs in the master cylinder are different sizes with the front reservoir being larger because it feeds the front disk brakes.

If you look at the picture, I believe my master cylinder reservoirs are the same size, but I'll have to check tonight when I get home to make sure. The brakes seemed to work fine before I started tearing the truck apart, but as part of my rebuild I'm likely going to buy a remanufactured master cylinder and I want to make sure I get the correct type.

Also, I'm assuming I've got a Bendix type booster and not the Delco Moraine...can anyone confirm this from the picture?

Thanks.