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05-26-2016, 10:37 PM | #1 |
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Location: Cape Coral, Florida
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Which Caliper?
The right front caliper locked up on my truck, so I went to the store and the clerk asked me the brake code, but I don't see it anywhere on my truck. My truck is a light 1/2 ton with the 1inch wide rotors. How do I tell if I have the JB3/JB1 or JD5/JD3?
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1986 Custom Deluxe 10 1978 Caprice 2 door - sold 1937 Chevrolet 2 door sedan - project |
05-27-2016, 09:31 AM | #2 |
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Re: Which Caliper?
SPID on the glove box door.
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84 step side 87 swb |
05-27-2016, 10:22 AM | #3 |
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Location: Motor City
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Re: Which Caliper?
JD3/JD5 are hydroboost.
JB1 is manual, JB3 is the lightest power system. You are lucky that JB3 is the only power system with the 1" rotor, therefore your truck is JB3. http://67-72chevytrucks.com/vboard/s...d.php?t=510519 K
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Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ Last edited by Keith Seymore; 05-27-2016 at 12:25 PM. |
05-27-2016, 12:21 PM | #4 |
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Re: Which Caliper?
SPID will only show the "merchandised" brake option of J50 (power), not the "unmerchandised" detail of JB1/JB3/JB5/JB6/JB7/JB8.
K
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Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ |
05-27-2016, 02:14 PM | #5 |
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Re: Which Caliper?
Non power but the jb1/jb3 sounds like it. Thank you
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1986 Custom Deluxe 10 1978 Caprice 2 door - sold 1937 Chevrolet 2 door sedan - project |
05-27-2016, 07:05 PM | #6 |
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Re: Which Caliper?
Oh - I assumed you had power brakes.
If you are manual then you have JB1. No doubt about it. K
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Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ |
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