What brake package is this?

[Bongdozer]

I got my 52” front spring swap and rear brackets in, phew the front was quite the pain in the @$$, the rear only took 2-3 hrs though. Now I’m on a final stuff before this thing is ready for trails and to move again. Last thing up is the brake booster. My service codes don’t mention JB5 or any other package for brakes. It does list the Silverado package. I’m looking on rock auto and I don’t wanna pick up a paperweight if possible.

IMG 4955

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IMG 4958

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IMG 4957

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[Wes Harden]

What is the Difference, JB5, JB6 and JB7?

I found out I have a JB5 brake system in my :burb: and I have always thought its brakes were kinda weak, even after replacement and going to a shop for power bleed and adjustment. I know the ratings for the different brakes but what hardware is different between these systems: JB5 BRAKE...

ck5.com

Check this post out, any questions after ask here