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Help! new master cylinder

ZAKS VETTE

Active member
Joined
Jun 24, 2020
Messages
29
Location
Raleigh,NC
Corvette
1992 C4 green drop top
I have read and read can't find any answers to these questions.


I'm in the middle of a brake job. Pads and rotors done, everything went well.

I bought a new master cylinder from rock auto.part #Mc391429 .

3 Problems

1. It does not match up with my old one, it has no "PRIME LINE PORT" to the ABS system I could just change the reservoir I guess?

2. my old master does not have a "pressure differential warning switch assembly" do I need this? my manual shows it...

3. My master was leaking inside the booster does that mean I need a new booster?

Thanks for any help...
 

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