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Single piston calipers are big and kinda round!! W/ 4 sliders, 2 on each side that stick out.. They are what the guide bolts slide in....

4-piston calipers are long and rectangular.. They bolt solid...

pdq67
 

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MaryBeth the single piston caliper will have only one big piston on each side of the roter that the pads go against. Take a pic if you can't tell.
The single piston calipers have only ONE piston, it's on the inside of the rotor. The caliper kinda looks like a c-clamp.
 

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Single piston calipers are used on 69's and later(except the JL8's). 67's and 68's used dual piston calipers.

Brake lines are on the drivers side and are 3/16" in diameter, fuel line (only one on all 67's and 68's) are on the passenger side and are 3/8" in diameter.
 

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Flexible lines are used between the end of the steel brake line on the body of the car and the rear axle. Then there is a steel line that runs across the top of the axle to each wheel. Flexible lines are also used on the fronts, between the calipers and the end of the steel lines at the frame. The flexible lines allow movement between the body and the suspension parts.
 

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Here is a pic of a single piston caliper, the piston is on the back side, the outboard brake pad is visible in the center opening of the caliper. this is a sliding caliper, it slides on the two bolts, one on each end. The piston must be compressed before you remove the caliper in order to insert the new thicker pads.

A four piston caliper has two bumps where the two outboard pistons are, and you can't see the brake pad.

If you have the top type, ask for brake pads and parts for a 1969 Camaro.
 

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Discussion Starter · #17 · (Edited)
Okay....Hubby says if I want to be able to move the car without pushing, I have to have brakes. Thanks for the info on those. Two more questions. I see listings for 1 pc and 2 pc lines. What is the difference, other than the 1 pc has to be bent for shipping if it is ordered and not purchased locally? and Can I use lines for 68 multileaf on a 67?
 

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One more question. I see listings for 1 pc and 2 pc lines. What is the difference, other than the 1 pc has to be bent for shipping if it is ordered and not purchased locally.
I believe they are referring to the single brake line going to the rear of the body, the interconnecting line from the proportioning valve to the rubber hose at the rear axle.

Sixty-sevens and some 68's came with 1-pc line, 7-8 foot long. Some 68's and 69's have a residual valve bolted on the subframe under the driver seat, this is a 2-pc line, one line from porportioning valve to the residual valve and a second line from the residual valve to the rubber hose.

I would look into replacing the three rubber hoses with a stainless hose kit, if budget allows.
 

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Discussion Starter · #19 ·
Okay, let me ask this. I now have multi leaf springs on the rear. I just got off the phone with NPD (local) and we are trying to figure out what would change that would require me to use 68 multi leaf rear lines instead of 67 monoleaf lines. The axle and frame have not changed, only the height of the rear of the car. (gotta lower it a little)
 
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