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#1 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,248
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D52 Caliper Rear Disc Brake Brackets
These are the latest rear disc brake brackets that I have designed with help from a few other members. These brackets will bolt onto the truck 12 bolt rear differentials from '64-'82 and the 10 bolt truck differentials from '79-'87. The OEM application for the rotors used is the '92-'02 AWD Astro/Safari vans. These have the 5 on 5" bolt pattern the same as the '71 and up C10's are 11.6" in diameter and 1.29" thick. The brackets will accomodate the OEM 'D52' size calipers as well as the new Wilwood dual piston D52 calipers. The D52's can be identified as the large GM calipers with the 7.06" center to center of the mounting bolts/pins.
The price on these is $257.00 plus a flat rate shipping of $16.25 anywhere in the USA. These brackets are also available powder coated in satin black for an additional $28.00 This pricing is always current and up to date. If you are outside of the USA contact me for a shipping price. What is included for this price is shown in the first pic, which includes the 3 piece assembly for both sides, plus all the necessary grade 8 hardware for mounting to your differential. For payment I accept PayPal and money orders. If you would like a set, post in this thread and or send an email to captainfab454@hotmail.com, and I will give you the ordering and payment instructions and current lead time. A big thanks to smashingchuck for contacting me and supplying the Wilwood D52 dual piston caliper. And thanks also to lolife99 for contacting me also and the encouragement.
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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; 10-08-2021 at 09:38 PM. Reason: Shipping price increase |
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#2 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,248
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Re: D52 Caliper Rear Disc Brake Brackets
Here are a few pics of the OEM D52 calipers. These are available in two different piston sizes. The JD5/JB5 calipers have a 2 15/16" diameter piston and the JD7/JB7 calipers have a 3 5/32" diameter piston. If you need a E-brake these can be found under the application of rear calipers for the '76-'78 Cadillac Eldorado. The A1 Cardone part numbers for these are 16-4116 and 16-4117. Those are loaded calipers.
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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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#3 | |
Registered User
Join Date: Mar 2010
Location: a t w a t e r cali 95301
Posts: 10,713
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Re: D52 Caliper Rear Disc Brake Brackets
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#4 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,248
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Re: D52 Caliper Rear Disc Brake Brackets
Yes these are the brackets you need to use the '76-'78 Eldorado calipers
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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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#5 |
Registered User
Join Date: Oct 2018
Location: STURGEON BAY, WI
Posts: 5
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Re: D52 Caliper Rear Disc Brake Brackets
I'm currently working on converting my rear to disc on my '70. Can these brackets also be used when keeping the 6 lug pattern?
Planned on using 1990 K1500 w/ f44 (heavy duty) chassis 6 lug rotors (11.6 dia. and 1.29 thick) and using 71-72 front calipers in the rear. Any foreseen issues I may have? Besides some possible machining... |
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#6 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,248
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Re: D52 Caliper Rear Disc Brake Brackets
You can not just randomly change the rotor and still have the rotor and caliper line up. I have yet to find any two factory replacement rotors for different applications be exactly the same and interchangeable. I have no idea what the height is of the rotor you are wanting to use. Then there is the issue that most later model rotors do not have sufficient contact area to accommodate the D52 pads without having them hang over the outside edge.
You know that I do make 2 rear disc brackets for the 6 lug correct? http://www.67-72chevytrucks.com/vboa...d.php?t=637489 http://www.67-72chevytrucks.com/vboa...d.php?t=494411
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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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#7 |
Registered User
Join Date: Oct 2018
Location: STURGEON BAY, WI
Posts: 5
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Re: D52 Caliper Rear Disc Brake Brackets
Right, I do know that. The rotor overall height is 2.6"
My intention is to keep the front brakes the same as the rear, by using the same caliper. They have a larger piston then most and are cheap to replace. I was just wondering if you had a set of brackets that would work for my app? |
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#8 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,248
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Re: D52 Caliper Rear Disc Brake Brackets
The Astro/Safari rotors are 3.27" tall. That is a difference of .670. I don't know if a .625" thick spacer would work. It might require a .750" thick spacer machined down to .670". It seems like I tried to use the F44 rotor when I developed my 6 lug kits, but I couldn't get the D52 pads to fit, like I mentioned previously. I would have to go back and look.
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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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#9 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,699
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Re: D52 Caliper Rear Disc Brake Brackets
Got my set of powdercoated brackets today!
Super nice product, with great customer service. Highly recommend these as a lower cost alternative to rear disc brake kits,... and the ability to use factory oem parts. A+ to Captainfab for designing these brackets!
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 Last edited by lolife99; 04-20-2010 at 12:24 AM. |
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#10 |
Registered User
![]() Join Date: Apr 2009
Location: Dearborn Hgts, MI
Posts: 47
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Re: D52 Caliper Rear Disc Brake Brackets
Wow great job! Great price too! I bet we wish we all had a lil of the Captians skill in us
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#11 |
Registered User
Join Date: Aug 2002
Location: Melville, SK
Posts: 1,145
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Re: D52 Caliper Rear Disc Brake Brackets
If you don't mind me asking, is there a distinct advantage to this setup versus the camaro/impala setup you offer? Parts/aftermarket availibility?
I am planning on doing one of these conversions in the future, I just have to learn about my options and then consider which route I want to go.
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2004 Silverado - Beater 1969 GMC - In progress http://67-72chevytrucks.com/vboard/s...d.php?t=441683 2011 Aveo - Work commuter 2013 Crestliner Fish Hawk 1650 - The reason no work gets done on the project truck. |
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#12 | |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,248
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Re: D52 Caliper Rear Disc Brake Brackets
Well this whole disc brake bracket assembly came about as the result of a couple members wanting an affordable rear disc brake conversion that would accept the Wilwood dual piston D52 calipers. As is works out the GM D52 calipers will work as well, which can be bought for around $15.00 each for rebuilt calipers, not counting the core charge. A lot of guys will have a couple D52 calipers laying around that can be turned in for cores. So from that perspective the calipers for these can be very inexpensive if you don't need an e-brake. If you do need an e-brake, those will run about $110.00 plus a core charge of around $25.00. The GM D52 calipers come in 2 piston sizes, 2 15/16" and 3 5/32" whereas the Impala, and the Camaro calipers are considerably smaller at 1.59" for the Camaro caliper and the Impala SS calipers at 2.13".
The one other thing that I like about this setup, is the rotors. The Astro rotors are about the same diameter as the Impala SS rotors, but the Astro rotors are 1.29" thick compared to the Impala SS rotors which are .790 thick. I just like the thicker, heavier rotors, plus they are the same thickness as most front rotors. I haven't done a total conversion cost comparison between the three assemblies, but I feel that these are a little better suited for use on a pickup. The brackets themselves are more expensive than either the Impala brackets or the Camaro brackets, but I believe that a person can do the conversion for less money overall. Plus you can always upgrade to the Wilwood dual piston D52 calipers at a later date without any modifications. A lot of what makes either one better for you, is if you can source any of the parts needed for one more economically than the other. And also what you expect fron your truck's brakes. Quote:
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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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#13 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,248
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Re: D52 Caliper Rear Disc Brake Brackets
Here's a pic of the brackets in satin black powder coat.
__________________
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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#14 |
Registered User
Join Date: Nov 2006
Location: Arizona
Posts: 121
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Re: D52 Caliper Rear Disc Brake Brackets
Couple of questions for you Captain. Are the rotors from the front or rear? And what will we find the GM "D52" calipers on?
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#15 |
Registered User
Join Date: Feb 2010
Location: mesa az
Posts: 211
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Re: D52 Caliper Rear Disc Brake Brackets
I believe these are D52 calipers? With these calipers and rotors off of the astro van they will work with 15" Wheels won't they?
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#16 | ||
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,248
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Re: D52 Caliper Rear Disc Brake Brackets
As N2TRUX posted, the D52 calipers are found on the front of most full sized cars as well as the C10 and C20 trucks from '71-'87. The rotors are front rotors since the Astro vans didn't come with 4 wheel discs. At least that I know of. The application for rotor that I used was 1992-2002 AWD Astro/Safari van
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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; 04-26-2010 at 12:04 AM. |
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#17 | |
Registered User
Join Date: Feb 2010
Location: mesa az
Posts: 211
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Re: D52 Caliper Rear Disc Brake Brackets
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#18 |
Registered User
![]() Join Date: Dec 2006
Location: nash,TN
Posts: 218
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Re: D52 Caliper Rear Disc Brake Brackets
do you have to run a proportion valve! thanks
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#19 | |
Registered User
Join Date: Sep 2010
Location: Fort Worth, TX
Posts: 222
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Re: D52 Caliper Rear Disc Brake Brackets
Quote:
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#20 | |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,248
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Re: D52 Caliper Rear Disc Brake Brackets
I haven't bought the Eldorado calipers myself, but I have read that they don't come with the arms for the e-brake. Some guys have made their own using the correct size wrench. If you get a set of the Eldorado calipers and they don't come with the arms, and you can't get the issue solved, let me know and I'll get you taken care of.
BTW, your brackets shipped today. You should see them Saturday or Monday at the latest. Thanks again. Quote:
__________________
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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#21 | |
Registered User
Join Date: Feb 2011
Location: Senatobia, MS
Posts: 1,294
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Re: D52 Caliper Rear Disc Brake Brackets
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Once a Marine, always a Marine! My (Her) 57 Build "Beverly" My 66 Build "Betty" My 85 C10 "Old Blue" Help Me Find "Old Blue" OLD BLUE PART II |
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#22 | |
Happy to be here
![]() Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,023
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Re: D52 Caliper Rear Disc Brake Brackets
Quote:
You can use the stock GM D52, or several aftermarket calipers that are designed to be a replacement for them. As mentioned Wilwood makes one with two different piston sizes. Search Google for D52 caliper applications to get a more complete listing.
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Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra" Last edited by N2TRUX; 04-25-2010 at 05:57 PM. |
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#23 |
Formerly- 1972SuperCheyenne
![]() Join Date: Oct 2008
Location: Wake Forest NC
Posts: 5,782
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Re: D52 Caliper Rear Disc Brake Brackets
Looks sick with the Wilwood calipers. Another top notch product! Great work Captain!
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--Josh My Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=799218 A good crossthread is better than Loctite any day. Life is not about what you have, but who you have to share it with. |
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#24 |
Registered User
Join Date: Feb 2009
Location: New Park, PA
Posts: 312
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Re: D52 Caliper Rear Disc Brake Brackets
So just for clarification the rotors that are used with these brackets are '92-'02 Astro AWD Vans? I have the wilwood calipers up front, and was thinking about matching them up, so all I would need is this bracket, rotors, and the calipers if I'm correct? I wasn't planning on running an e-brake so I'm not worried about that. Thanks
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#25 | |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,248
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Re: D52 Caliper Rear Disc Brake Brackets
That is correct. One other item that you will need is a couple of brake hoses. Some guys are happy with using the front hoses for the '71-'72 pickups. Others use hoses for a '79 Chevette. Or you can go with some aftermarket braided stainless hoses. I haven't looked to see what hoses Wilwood offers for their dual piston D52's.
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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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