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Old 10-30-2008, 08:08 PM
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brake caliper bracket

Hi guys,
I am trying to put disc brakes on a 1953 ford and i think i am close to figuring it out and i am trying to fab up a bracket for the caliper this will be a chevy caliper what i really need to know is what thickness of steel should i use to make the brackets with thanks up front for any info.

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Old 10-30-2008, 08:18 PM
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3/8" thick will be plenty. Don't let the space between the bracket and flats on the ends of the caliper get too big,(no more than .030") or else you will break anchor pins.

Later, mikey
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Old 10-30-2008, 08:53 PM
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Quote:
Originally Posted by jaslong
Hi guys,
I am trying to put disc brakes on a 1953 ford and i think i am close to figuring it out and i am trying to fab up a bracket for the caliper this will be a chevy caliper what i really need to know is what thickness of steel should i use to make the brackets with thanks up front for any info.

1/4 is fine, its what wilwood and other brake kit suppliers use.
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Old 10-30-2008, 09:16 PM
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Quote:
Originally Posted by 406 bug
1/4 is fine, its what wilwood and other brake kit suppliers use.
The majority of companies that sell caliper brackets for GM calipers use 3/8"

If you do use 1/4", put bosses in the anchor bolt holes to bring the thickness up to at least 3/8" or 7/16" would be better.. The anchor pin threads are 7/16-20..you want your thread depth in any critical part to be close to the diameter of the bolt...
1/2" bolt needs 1/2 thread depth, 3/8" bolt wants 3/8" thread engagement, etc...That's a very common rule of thumb..Go measure the thickness of any standard nut and compare it to the bolt diameter.

Later, mikey
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Old 10-30-2008, 09:25 PM
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Quote:
Originally Posted by powerrodsmike
The majority of companies that sell caliper brackets for GM calipers use 3/8"

If you do use 1/4", put bosses in the anchor bolt holes to bring the thickness up to at least 3/8" or 7/16" would be better.. The anchor pin threads are 7/16-20..you want your thread depth in any critical part to be close to the diameter of the bolt...
1/2" bolt needs 1/2 thread depth, 3/8" bolt wants 3/8" thread engagement, etc...That's a very common rule of thumb..Go measure the thickness of any standard nut and compare it to the bolt diameter.

Later, mikey
Right Mikey, lots eaiser to use 3/8 rather than instal bosses in 1/4.
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Old 11-01-2008, 09:10 PM
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Thanks for the input guys i guess ill have to get to figuring out the pattern for the bracket.Wish me luck this will be my first attempt at making anything like this
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Old 11-03-2008, 11:54 AM
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I usually put the rotor on the spindle, then put the caliper on the rotor, then position the caliper so the bleeder is in the correct position to bleed easily..(GM midsize caliper is rotated rearward so a line drawn through the anchor pins will be on a 40* angle)
Set the pads so they are just inside the outside diameter of the rotor, use a couple of sheets of paper between the rotor and stationary pad, to get your correct lateral position, then make a plywood or MDF template of your bracket. Plywood is easier to rework than steel. Once your plywood template is done, use it to make your part from steel, in the thickness that you like, as discussed before.

Later, mikey
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Old 11-03-2008, 01:34 PM
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I made these for a narrowed 9", to give you one idea.
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Old 11-15-2008, 06:51 PM
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Ok guys just wanted to know what you guys think i have a buddy at work who's uncle works at a fab shop a i gave him the pattern i came up with for the bracket he has built a few jeeps and 4x4 projects even made his own frame for his jeep and he says that 1/4 inch is plenty strong enough this is what he says they used on the jeeps and vehicles he has done and has had no problems. He will cut out the brackets for me out of 1/4 inch steel for 50 bucks and since i asked about the strength issue he said he would even weld some nuts to the back or some thicker steel so i can tap it and have the thickness i want around the caliper pin mount points so my question is what is your alls opinions on this if 1/4 inch is for sure strong enough and will work i think the price is right to do it so thanks for any help and advice.
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Old 11-15-2008, 07:22 PM
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Do it.

Scarebird makes their brackets out of 1/4 also.

I am an overkill kind of guy anyway.

Mikey
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