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Suspension Questions Chassis, Brakes, Springs, Shocks, Swaybars, Tire, Rims Etc Suspension Questions Chassis, Brakes, Springs, Shocks, Swaybars, Tire, Rims Etc

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Old 12-26-2019, 09:49 AM   #1
Rockinkees
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Default Help Needed identify disc brakes ‘57

Hello all!
I need some help with identifying my discbrakes on my ‘57 wagon.
These were on it when I bought te car.
Problem is, I want 2” dropped spindles, but I have already discs up front. Now I want to know which spindles I can use and which brackets I need for my calipers.
The rotors have 7/16 x 20 bolts, I also noticed that the calipers are mounted at the front, while I see that the’re mostly are mounted at the backside of the spindle??
So, I don’t know which set they used on this car...
Every help is much appreciated!!
Thanks!
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Old 12-26-2019, 11:28 AM   #2
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If your disc brake set-up is mounted to stock height spindles, you will not be able to use it with dropped spindles.
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Old 12-26-2019, 12:21 PM   #3
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Ok.
But can you explain me why not?
New spindles and new brackets should work, or am I missing something?

I mean, I put new dropped spindles, new brackets to bolt my own calipers to it. Calipers don’t change with dropped spindles?? It’s the brackets?
That’s why I need to know which set it could be, or at least what calipers and discs are used?

If I do not see everything, please explain? Thanks!
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Old 12-26-2019, 12:44 PM   #4
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Update!
That’s quick haha!!

It looks like I have calipers and rotors from ‘69-‘72 Chevelle and those are not compatible with any dropped spindles produced?

If any one knows otherwise, please fill me in, thank you!!
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Old 12-26-2019, 12:44 PM   #5
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most disc brake drop spindle kits are designed to use a certain rotor and wheel bearing combination that is different and a better size more common bearing than what the stock spindle uses, you might be able to use your d52 calipers though.
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Old 12-26-2019, 12:49 PM   #6
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Quote:
Originally Posted by hotrodg726 View Post
most disc brake drop spindle kits are designed to use a certain rotor and wheel bearing combination that is different and a better size more common bearing than what the stock spindle uses, you might be able to use your d52 calipers though.

Thanks!
I could do best with a complete new kit I assume.
Larger bearings is always better, plus I got everything new then...
Point is I have to have a set where I can buy replacement parts of the shelf here in the Netherlands, so I must know what is used in the kits.
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Old 01-06-2020, 08:10 AM   #7
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Ok, after some further research I have stock spindles wit 11” Chevelle rotors and 7” d52 calipers.
But why are the calipers mounted at the front of my spindle, as I see everyone has them on the back of the spindle??
Are there different sets available?
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Old 01-06-2020, 11:54 AM   #8
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Depending on the brackets you have, you might be able to swap both the brackets and calipers from side to side and have the calipers behind the spindles.

If your calipers are now at 9 o'clock and 3 o'clock, then you are out of luck because the caliper will hit the steering arm. If your calipers are now at 10 o'clock and 2 o'clock, then you might be able to swap them and have the caliper clear the steering arm.

With the calipers in front, they may hit the sway bar if you have one when turning sharply. This will cause a momentary loss of brake performance.
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Old 01-06-2020, 12:09 PM   #9
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Quote:
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Depending on the brackets you have, you might be able to swap both the brackets and calipers from side to side and have the calipers behind the spindles.

If your calipers are now at 9 o'clock and 3 o'clock, then you are out of luck because the caliper will hit the steering arm. If your calipers are now at 10 o'clock and 2 o'clock, then you might be able to swap them and have the caliper clear the steering arm.

With the calipers in front, they may hit the sway bar if you have one when turning sharply. This will cause a momentary loss of brake performance.
So, you could swap the brackets left to right... Mine are at “10 o’clock” so I could mount them in the back.
I haven’t got a swaybar yet, but that’s on my wishlist. Probably best to swap them around then. I always see them mounted at the backside of the spindle.
It is just how you mount the brackets then, if the’re up front or behind the spindle.

Is there also a (big) advantage to mount them at the back or doesn’t that have not so much influence?
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Old 01-09-2020, 07:11 PM   #10
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Coming from an old guy... when they (Classic Chevy) first came out with disc brake brackets, the instructions showed mounting them at the front. Later on they revised the instructions and said to take the brackets and reverse sides and put them at the back. Just be sure the bleeder is up on the brake calipers. Pops (557B210) probably has this info if you want to message him.
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