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caliper bracket measurement

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Old Aug 7, 2012 | 05:55 PM
  #1  
anesthes's Avatar
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From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
caliper bracket measurement

Anyone got a 10 bolt with iron calipers? I need to know the distance from the end of the tube to the bracket.

I'm putting the brackets on a drum rear end, and I don't want to take a chance that the flange that mounted the drum is the exact same distance from the end of the axle tube as on a actual disc housing.

I also noticed the diameter of the tube appears to be smaller on the drum housing, so apparently I have to find a way to make sure I have true center before I anchor the brackets.

-- Joe
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Old Aug 10, 2012 | 12:29 PM
  #2  
91phoenix's Avatar
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From: Wichita Falls, TX
Car: 91 Firebird,00 c2500,75 Vette
Engine: 3.1 but 350 soon, 350, 350
Transmission: T56 soon
Axle/Gears: stock 3.42 Posi to come
Re: caliper bracket measurement

I have one sitting that should be easy to measure. I can do it when I get home this evening.
If I read it right you want the measure from the end of the axle tube straight back to the disc brake flange?
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Old Aug 10, 2012 | 01:03 PM
  #3  
anesthes's Avatar
Thread Starter
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25 Year Member
iTrader: (13)
 
Joined: Jul 1999
Posts: 12,089
Likes: 125
From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
Re: caliper bracket measurement

Originally Posted by 91phoenix
I have one sitting that should be easy to measure. I can do it when I get home this evening.
If I read it right you want the measure from the end of the axle tube straight back to the disc brake flange?
Yeah. I'm curious what the distance is.. Thanks!

I just want to make sure I can slide these on and weld 'em up.

-- Joe
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Old Aug 11, 2012 | 07:21 PM
  #4  
91phoenix's Avatar
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Joined: Aug 2010
Posts: 916
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From: Wichita Falls, TX
Car: 91 Firebird,00 c2500,75 Vette
Engine: 3.1 but 350 soon, 350, 350
Transmission: T56 soon
Axle/Gears: stock 3.42 Posi to come
Re: caliper bracket measurement

Sorry it took so long to get back with the measurement. The rear I measured from is approximately from 86 10 bolt with the original delco disc calpiers. I used a tape measure as the axles were still in it. I measured almost 13/16 from original disc mounting plate to end of housing and almost 1/4 thick mounting plate. I would presume until I can get the backing plate off amd measure with calipers that it is 1" or 1 1/16". If I was mocking up I would try it as 1" myself with how I measured. Each measure was just before the line, not on the line. Based on first hand knowledge I would say from my measurement that the steel disc backing plate is stamped from 1/4" plate which usually is just barely under.
Sorry I can not get closer but this should get you very close.
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Old Aug 11, 2012 | 08:00 PM
  #5  
anesthes's Avatar
Thread Starter
TGO Supporter/Moderator
25 Year Member
iTrader: (13)
 
Joined: Jul 1999
Posts: 12,089
Likes: 125
From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
Re: caliper bracket measurement

Originally Posted by 91phoenix
Sorry it took so long to get back with the measurement. The rear I measured from is approximately from 86 10 bolt with the original delco disc calpiers. I used a tape measure as the axles were still in it. I measured almost 13/16 from original disc mounting plate to end of housing and almost 1/4 thick mounting plate. I would presume until I can get the backing plate off amd measure with calipers that it is 1" or 1 1/16". If I was mocking up I would try it as 1" myself with how I measured. Each measure was just before the line, not on the line. Based on first hand knowledge I would say from my measurement that the steel disc backing plate is stamped from 1/4" plate which usually is just barely under.
Sorry I can not get closer but this should get you very close.
Thank you. That is very helpful! At least I'll know if mine is close or not.

-- Joe
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