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Old 03-21-2018, 10:55 PM   #1
Captainfab
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Re: 6 Lug Rear Disc with 15" Wheels and an E-Brake

None of my rear disc brackets are a direct bolt on to the Eaton HO32/33 differential. I imagine they could be made to work if you want to spend the time and money to do so. Personally if you want rear disc brakes I would replace the Eaton with a '64-'82 truck 12 bolt with a better gear ratio and then add your rear disc brakes.

Quote:
Originally Posted by TheBrewery View Post
Would these work on a 1960? or could they be modified to work? I think I need to get rid of my rear drums...
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Old 03-21-2018, 11:08 PM   #2
TheBrewery
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Re: 6 Lug Rear Disc with 15" Wheels and an E-Brake

Quote:
Originally Posted by Captainfab View Post
None of my rear disc brackets are a direct bolt on to the Eaton HO32/33 differential. I imagine they could be made to work if you want to spend the time and money to do so. Personally if you want rear disc brakes I would replace the Eaton with a '64-'82 truck 12 bolt with a better gear ratio and then add your rear disc brakes.
I guess I don't understand how they attach, Is it just modifying the mounting or is the axle whats going to cause the issue?
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Old 03-22-2018, 10:59 PM   #3
Captainfab
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Re: 6 Lug Rear Disc with 15" Wheels and an E-Brake

All of my rear disc conversion brackets attach using the original backing plate flange. The Eaton HO32/33 has a different flange that the truck 12 bolt. Plus I do not know of the brake offset is the same. If they are not the same offset, the caliper will not line up with the rotor.

Quote:
Originally Posted by TheBrewery View Post
I guess I don't understand how they attach, Is it just modifying the mounting or is the axle whats going to cause the issue?
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Old 04-11-2018, 02:51 PM   #4
TheBrewery
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Re: 6 Lug Rear Disc with 15" Wheels and an E-Brake

Quote:
Originally Posted by Captainfab View Post
All of my rear disc conversion brackets attach using the original backing plate flange. The Eaton HO32/33 has a different flange that the truck 12 bolt. Plus I do not know of the brake offset is the same. If they are not the same offset, the caliper will not line up with the rotor.
I picked up a 12 bolt out of a 70 Chevelle, would this kit fit? I am special ordering the axles and will have the flange cut down.
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1960 C10 Short Step 235 w/ 3 on the tree
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2016 Chevrolet Traverse - Wifes Car
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Old 04-11-2018, 03:58 PM   #5
Killer Bee
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Re: 6 Lug Rear Disc with 15" Wheels and an E-Brake

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Originally Posted by TheBrewery View Post
I picked up a 12 bolt out of a 70 Chevelle, would this kit fit? I am special ordering the axles and will have the flange cut down.
I'm not even going to pretend that I can answer your question..

however I was just reading this recently and it may be useful to you..

good luck!

12 bolt truck rear end vs 12 bolt car
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Old 04-11-2018, 11:57 PM   #6
Captainfab
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Re: 6 Lug Rear Disc with 15" Wheels and an E-Brake

The car 12 bolt has a different backing plate flange shape size and hole pattern than the truck/Impala backing plate flange. I do happen to have a couple car 12 bolt base plates that I could substitute. So you are having axles made for a car 12 bolt with the 6 x 5.5" wheel stud pattern? I would think that a '70 Chevelle 12 bolt would bring a premium price.

Are you going to need a set of trailing arm mounts also?

Quote:
Originally Posted by TheBrewery View Post
I picked up a 12 bolt out of a 70 Chevelle, would this kit fit? I am special ordering the axles and will have the flange cut down.
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Power Steering Box Adapter Plates For Sale HERE
Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE
Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE
Hydroboost Mounting Plates HERE

Last edited by Captainfab; 04-12-2018 at 12:05 AM.
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Old 04-12-2018, 10:14 AM   #7
TheBrewery
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Re: 6 Lug Rear Disc with 15" Wheels and an E-Brake

Quote:
Originally Posted by Captainfab View Post
The car 12 bolt has a different backing plate flange shape size and hole pattern than the truck/Impala backing plate flange. I do happen to have a couple car 12 bolt base plates that I could substitute. So you are having axles made for a car 12 bolt with the 6 x 5.5" wheel stud pattern? I would think that a '70 Chevelle 12 bolt would bring a premium price.

Are you going to need a set of trailing arm mounts also?
Yes, I am having Moser make a pair of somewhat custom axles for it.

I am halfway thru removing the Chevelle mounts and will absolutely need a trailing arm mounts.

I picked it up a Super Chevy for $600, it's open with 2.73? gears. I think it's a good deal.
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1960 C10 Short Step 235 w/ 3 on the tree
1999 Mazda Miata <- Track Car
2016 Chevrolet Colorado z71
2016 Chevrolet Traverse - Wifes Car
2014 Honda CBR500R <- Also A Dust Collector
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Old 04-12-2018, 11:20 PM   #8
Captainfab
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Re: 6 Lug Rear Disc with 15" Wheels and an E-Brake

I'll have to take a look and see if I can ship the trailing arm mounts in the same box as the rear disc brackets. I will let you know.
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Power Steering Box Adapter Plates For Sale HERE
Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE
Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE
Hydroboost Mounting Plates HERE
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