What brake booster?!

[creed1969]

The last few weeks I've been digging around online trying desperately to figure out what brake booster I need to buy: Delco or Bendix. I've read many threads on this forum but still haven't come up with a solid answer.

First of all, this is a power disc brake install on my '69 C10 that was manual drums before. So it's not as simple as checking to see if my old booster is "gold" or "black"...I don't have an old booster .

I bought my master cyl. from LMC a couple years ago actually, and it is listed in their catalog as the only "power" M.C. for 71-72 halftons. The pushrod hole depth is 1-5/8", and the bolt holes are 3-3/8" on center. Here's a picture of it:
[IMG][/IMG]

I have a booster bracket from a '72 chev halfton that I'm planning to use. I don't know what booster the '72 had. The square bolt pattern where the bracket bolts to the booster measures 3-1/2" vertical, 3-1/4" horizontal.
[IMG][/IMG]

From what I've read, the Delco boosters were most common on the 71-72 halftons. Can anyone tell me if a Delco booster will fit my master cyl. and/or my booster bracket? I'd sure appreciate it.