1988 S10 Master Cylinder JB-1 or JB-3? - Team Camaro Tech
Brakes, Suspension & Steering Conversion questions, Steering & Handling

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post #1 of 3 (permalink) Old Aug 14th, 03, 10:23 PM Thread Starter
Senior Tech
Join Date: Jul 2003
Location: Fremont CA
Posts: 121

Hello Camaro Guru's,
I am in the process of converting my '69's four wheel drum brakes to C4 Corvette discs, and I want to use the 1988 S10 Master Cylinder. The problem is there are two S10 Master Cylinders for manual brakes a JB-1 or a JB-3. What does this code stand for and which one should I use??? Your help is appreiated.

Thank You

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post #2 of 3 (permalink) Old Aug 16th, 03, 06:21 PM
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Bryan Shook
Join Date: Sep 1998
Location: Enola, Pennsylvania
Posts: 428

JB1 would have been Manual front disc/rear drums
JB3 would have been Power front disc/rear drums

I hope this helps
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post #3 of 3 (permalink) Old Aug 17th, 03, 10:49 AM
David Pozzi
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Join Date: Nov 1999
Location: Central California, USA
Posts: 10,096

I wonder what the difference is?
Maybe the reservoir angle is tilted on the PB master cyl.

Check my web page for First Gen Camaro suspension info:
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67 RS 327 original owner. 1965 Lola T-70
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