Police Brake Upgrade Completed - Chevy Impala Forums
8th Gen Suspension Springs, Shocks and Brakes.

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post #1 of (permalink) Old 05-13-2017, 07:29 PM Thread Starter
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Police Brake Upgrade Completed

It's been a long road, researching, planning, buying, and now completing the work, but the results are good, and the job didn't go too bad.





Here are the 2 different caliper brackets on their sides, note how the black painted ones (Cop) are about 1/2" greater distance between threaded mounting holes and the actually caliper mounting holes, to account for the nearly 1" greater diameter of the cop rotors, more noticeable on the right side of the brackets in the picture. That's the end of a grease gun I used to regrease the sliding pin bushings, and 1 of a pair of stainless caliper hanging bracket from Amazon, $10Prime.









Here are the 2 different caliper brackets side by side. Note the cast in numbers, 16" on the stock brackets and 17" on the cop brackets. I don't know what the numbers exactly refer to because the cop rotors are 12.7", but for IDing the brackets quickly, look for these casting numbers to see which is which.




A Cop caliper, with it's 17" casting ID number, again, I have no idea what it refers to, because the rotors are under 13", but 17" means the cop ones, as both calipers and brackets had this number on them.





A rotor comparison. The Raybestos Cop rotors came painted black in the hat, front and back. I painted the calipers and brackets in PPG acrylic urethane. Note the almost imperceptible wear on the stock rotors. After I hit about 30K miles, I'd hit them hard once, from 70 to stop on the highway, like several times every day of the work week, ,and they will be warped every time you hit the breaks for the rest of the trip home. Next morning, they are parallel and stop perfectly when cold. Minimal wear on the pads too. 44K miles, 98% of it while cruise set on the highway.




Job completed, IronX job done on the wheels. Dirty car, Saturday car wash cancelled due to brake job. I did IronX the whole car, horizontal surfaces anyway, after the brake job. I'll do the rears, red paint on the calipers, black on the rotors, on Memorial Weekend.


Last edited by Carbide; 05-13-2017 at 07:41 PM.
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post #2 of (permalink) Old 05-15-2017, 01:43 AM
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Quote:
Originally Posted by Carbide View Post
A Cop caliper, with it's 17" casting ID number, again, I have no idea what it refers to, because the rotors are under 13", but 17" means the cop ones, as both calipers and brackets had this number on them.
The 17" refers to the minimum wheel size I believe. When I did this upgrade I noticed the numbers too, My old calipers have a 16" on them and the new ones have 17" and now the compact 16" spare wheel will not fit up front.



also, I just noticed that you have the 18" wheels, I wish I would of had them when I did this upgrade because I would have went with the better 4 piston calipers to make use of all the rotor surface.
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Last edited by IMSITTINGINYOURCHAIR; 05-15-2017 at 01:45 AM. Reason: added info
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Looks good. No clue about the 17, above post sounds logical.

What is the cost factor when compared to doing say something like this Power Stop Performance Disc Brake Kit KC5504 - Read Reviews on Power Stop #KC5504 , and do you expect better performance?

All I have done with ours is replace the front pads with duralast, think they were the cmax but don't remember off the top of my head.
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post #4 of (permalink) Old 05-15-2017, 05:44 AM
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@Carbide - I'm so jealous! I would love to get this done to my 2012, but not sure I can tackle it myself. Is there any way that you could put together a details list of parts, part numbers, costs, etc? If I knew I could get all of the correct parts, maybe I'll just take them to a shop and have them do the work. I hate the stock front rotor size - it's just too small for the car.

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post #5 of (permalink) Old 05-15-2017, 09:21 AM Thread Starter
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Quote:
Originally Posted by IMSITTINGINYOURCHAIR View Post
The 17" refers to the minimum wheel size I believe. When I did this upgrade I noticed the numbers too, My old calipers have a 16" on them and the new ones have 17" and now the compact 16" spare wheel will not fit up front.



also, I just noticed that you have the 18" wheels, I wish I would of had them when I did this upgrade because I would have went with the better 4 piston calipers to make use of all the rotor surface.
I wasn't aware there was a 4 piston caliper; but that might be the GXP aluminum calipers. When I saw the GM price for new ones, I decided the cast irons ones were good enough. The Cop caliper seems identical to the retail version, except for the mounting hole spacing for the slide pins. Same piston size, same numbers on the pistons.

Quote:
Originally Posted by 12 lt View Post
Looks good. No clue about the 17, above post sounds logical.

What is the cost factor when compared to doing say something like this Power Stop Performance Disc Brake Kit KC5504 - Read Reviews on Power Stop #KC5504 , and do you expect better performance?

All I have done with ours is replace the front pads with duralast, think they were the cmax but don't remember off the top of my head.
The pads don't wear much, nor do the rotors, but the rotors warp after they get hot with more than about 30K miles on them.

I don't have any experience with brake kit alternatives, it's a choice you'll have to make for yourself.

I bought wisely, but the total cost I'm oblivious to.


Quote:
Originally Posted by jtrosky View Post
@Carbide - I'm so jealous! I would love to get this done to my 2012, but not sure I can tackle it myself. Is there any way that you could put together a details list of parts, part numbers, costs, etc? If I knew I could get all of the correct parts, maybe I'll just take them to a shop and have them do the work. I hate the stock front rotor size - it's just too small for the car.

Sent from my Vi10 Plus using Tapatalk
I planned on adding all my notes on part numbers, source and cost.

I treated myself to a pleasure cruise and a nice dinner out Sunday, and I have stuff to do today after work, so it's probably going to be Tuesday night before I can add that stuff to the thread.

Rocked the Rosen install hard on that Sunday drive.
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post #6 of (permalink) Old 05-16-2017, 03:33 PM Thread Starter
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I shopped each part number around all the places I could think of to find the best deal at the time I ordered that part(s). You might to do better, but if you wait awhile, then all the prices you find will probably be higher. Generally, my parts cost is shipping included, or sans shipping if it was Amazon, 'cause I'm a Prime mofo.

Start a Word file with your desired parts numbers, set a goal on acquiring one or a pair of parts at a time, and pull the trigger on the best price you find for that segment of the list.

THIS LIST IS FOR A 2016 IMPALA LIMITED. REAR BRAKE CODE FOR EARLIER NON LEVER REAR BRAKES IS ATD698P.

I HAVE A SET OF RAYBESTOS REAR POLICE PADS FOR OLDER STYLE CALIPERS FOR SALE-CHEAP. HIT ME UP. THEY ARE COMPATIBLE WITH OEM/STOCK CALIPERS AND ROTORS.

Police spec rotors and pads have a different part number than OEM/stock. Police rear parts are interchangeable with OEM/stock.

Front Police spec rotors, calipers and and caliper mounting brackets are Police Specific, and do not interchange. The pads do, they just have a better compound.

Le Menu:

(2) Req’d Caliper Brackets ‘12-‘13 Police
25983766
GM Parts Direct $41.51 (ea) Ordered GM Parts Direct Flow Chevrolet 12/29/16 $94.96

(1) Req’d Right Front Caliper ‘12-‘13 Police
25983763
Amazon $99.98 (ea) Ordered Below Amazon

(1) Req’d Left Front Caliper ‘12-‘13 Police
25983762
Amazon $76.36 (ea) Ordered L and R Amazon 12/29/16 $186.92

(2) Raybestos Front Rotors Police 580387 Ordered Rock Auto 2/15/17 159.96 Shipping was 21.98!

(2) Raybestos Rear Rotors Police 581033 (27.79 ea)Ordered Rock Auto 2/12/17 123.35 Shipping was 19.98!

(1) Req’d Raybestos Police Rear Brake Pad Kit ATD999P
Ordered Rock Auto 2/12/17 $49.78

(1) Req’d Raybestos Police Front Brake Pad Kit ATD1159P
Amazon $47.37 Ordered Amazon 12/28/16 $47.37

Just in case for the install, and for down the road if install had no issues:

(2) Caliper Rear Guide Pin Carlson H5092 (7.04 ea) Ordered Rock Auto 4/1/17 19.37 Shipping was 5.99!



(2) Caliper Front Guide Pin Carlson 14179 (5.60 ea)Ordered Rock Auto 4/1/17
Part of another order so no total or shipping.

Someone else can total that, I have no desire to do so.

I did not use the caliper pins, but I think I will at the next brake job.

I got boot kits front and rear, and extra 'clips'- the sliding guides front and rear. I may go back in and replace them and relube the pads to see how long the cop stuff will last if taken care off.

I've done brakes a bunch of time on my '10 Impala, and have done this to hopefully reduce the cost and frequency. If not, at least the calipers are red now.
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post #7 of (permalink) Old 05-17-2017, 03:15 PM Thread Starter
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I have been remiss to not include the mandatory caliper fitting copper washer part numbers and price.

I'm not allowing myself to have any Oreos tonight for my omission.

GM #2101386 .

I used (2), one under the fitting for each caliper; I did not remove the banjo bolts from the banjo fittings, I just shook off the old washer from the bolt where it sat under the fitting, slid a new one on, and tightened with a 10MM socket/ratchet.

DO NOT ATTEMPT TO BUY THESE ONLINE!

Just go to a dealer, give them the part number, buy an extra one just in case you lose or damage one, and you'll be miles ahead of trying to do this thru the mail. They'll overcharge you, then you pay for shipping, when you can just drive by ANY GM dealer, walk to the counter, give them the number, ask for 3, and walk out with them in hand for about 4 bucks.

DO NOT ATTEMPT TO REUSE THE CALIPER FITTING COPPER WASHERS!

Oreos, tomorrow.
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