There is always a lot of conversation on how to split the brake lines, add a proportioning valve, and wire the brake light switch.

Surfing the web today looking for some brake options on one of my 65 Mustangs I ran across this page from CJ Pony Parts.

This solves a lot of problems for under $150.

Mustang Brake Proportioning Valves & Distribution Blocks | CJ Pony Parts

 

Class Performance offers a MC with the proportioning valve built in for $199. You will spend close that with separate parts. MCPV-1 has:

1. a delay valve to have the rears engage first
2. percentage of pressure to the rear
3. max pressure to rear wheels
4. output ports so you can use a separate line to each wheel
5. a 1/4npt port for a brake like switch
6. all fully adjustable so you can dial in the balance

.

I just added a dual MC for drum/drum. If am not happy with the new system, I will go with the MCPV-1 and disk.

 

I usually just take everything from the donor truck.

 

Here is a picture of what $200 buys, another $95 gets you a booster.

 

Surfing the web I stumbled on this site.

Im guessing I have found where many ebay sellers get their wares.

China Brake Vacuum Booster, Brake Vacuum Booster Manufacturers & Suppliers - Made-in-China.com