CPP 73-87 brake booster combo question

[Bloodhound]

Originally Posted by naphtali5725

hey all, i have an 86 1/2 ton. i want to replace the brake booster/MC/PV on my truck because i switched from the JB3 code to JB5 code hardware (drums/rotors/calipers/wheel cylinders)

my question is. will this CPP combo work for my truck?


cpp part number 7387BB-MC

https://www.summitracing.com/parts/clp-7387bb-mc

called their tech line, they said it is an 11 inch single diaphragm...

or should i just buy the factory parts?

I just installed that on my 1981 C10. I'm a ways from driving it but the quality appears to be really good. I believe it would work well with the JB5 brakes.

[naphtali5725]

Originally Posted by Bloodhound

I just installed that on my 1981 C10. I'm a ways from driving it but the quality appears to be really good. I believe it would work well with the JB5 brakes.

my concern was the JB3 brakes have a single diaphragm booster, JB5 has a dual diaphragm booster...

since this is aftermarket, i was looking for some feedback from someone who has used in this scenario..., if this one, being a single diaphragm, is it equal to a dual as far as power is concerned?