I bought one of the dual-diaphragm boosters from a user here. You'll probably have to wait a while and scour the forums and FB groups to see if you can find a listing or someone making a comment about it - that's how I found mine. I actually got it for pretty cheap too, because he had another...
For leak testing, I would say to use a UV dye in the system (although if it's empty, you'd probably have to charge it with freon anyways to have it circulate properly...I'm not actually sure about that part). But I've bought cans of R-12 on eBay so I don't think you would have an issue finding...
Hopping into the ring again!
One of the later things into my project 68 is to add Cruise Control (Chrysler refers to it as Speed Control), and my current parts on the box is from a 69 - well, I didn't realize until today that the earlier system (seems pre-1970) used vacuum-operated brake...
Looks like it has cruise control, could you get the part under the brake that turns it off (I believe it's part of the brake light wiring assembly?)
I believe it's a button type of assembly.
Just opened up the manual for CC, they call it a brake switch: that's what I need.
I finessed one from a guy on FB for $67 dollars - was in great condition. These guys are right, super rare in any passable condition and are $$$$ (unless you're like me, and get super lucky).
I am partially posting this to flex.
Yes, a 383. So yours would probably fit perfectly fine with maybe a few adjustments assuming a bolt hole doesn't line up. I'm just curious why yours seems to have two front brackets while mine is just one large piece. I guess they would've changed that from the 67 to the 68 model year...for...
Actually, I think I might want your bracket - yours looks different than mine, on my 68. Mine actually made it a pain to get the water pump off for my front engine rebuild.
It's right at the top of this image I had of my teardown of mine:
I guess they changed it from 67 to 68?
I've thought about the Sanden, but I think that would require me to buy some specific brackets compared to the regular AC brackets for the RV2 - get a shipping quote and we'll go from there. I like to keep things OEM, and honestly $50 plus shipping, I'll do that. I'll DM you my zipcode so you...