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Brake shoes made in china

Started by badpoints, October 03, 2023, 05:20:43 PM

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badpoints

Trying to instal new brake shoes on front of 1967 SDV. Have Raybestos 127PG . They look almost the same as old shoes. The hole on the secondary shoe which holds the actuating lever and stabilizer plate is too close to the wall. Also the hole for the retracting spring is too small and doesn't line up. I can fix with a drill and file but thinking of putting the old shoes back on . They still look new

Cape Cod Fleetwood

Quote from: badpoints on October 03, 2023, 05:20:43 PMTrying to instal new brake shoes on front of 1967 SDV. Have Raybestos 127PG . They look almost the same as old shoes. The hole on the secondary shoe which holds the actuating lever and stabilizer plate is too close to the wall. Also the hole for the retracting spring is too small and doesn't line up. I can fix with a drill and file but thinking of putting the old shoes back on . They still look new

What isn't made in China now honey? Even our politicians...
If quality car parts could be made in America at a competitive price point, they would. They can't.
There are 2 kinds of cars in the world, Cadillac and everything else....

The Present -1970 Fleetwood Brougham

The Past -
1996 Deville Concours
1987 Sedan De Ville "Commonwealth Edition"
1981 Coupe De Ville (8-6-4)
1976 Sedan De Ville
1975 Sedan De Ville

The Daily Driver and work slave -
2008 GMC Acadia SLT *options/all

badpoints

Can you get shoes that fit? I don't like messing with the hole that is the pivot point for the adjuster

Cadillac Jack 82

I'd love to see some other area of the world make products other than the CCP....but this is sadly what's happened when we started outsourcing products to China in the 70s.
Tim

CLC Member #30850

1948 Buick Roadmaster 76S Sedanette
1959 Cadillac CDV
1966 Oldsmobile Toronado

Past Cars

1937 LaSalle Coupe
1940 Chevy Coupe
1941 Ford 11Y
1954 Buick 48D
1955 Cadillac CDV
1955 Packard Super Panama
1957 Cadillac Series 62
1962 VW Bug
1962 Dodge 880
1964 Cadillac SDV
1966 Mercury Montclair
1967 Buick Wildcat
1968 Chevy Chevelle SS
1968 Plymouth Barracuda
1977 Lincoln MKV

TJ Hopland

If the old ones still have good material thickness and haven't been contaminated by brake fluid or bearing lube I would leave them in especially if you still know which were which and they can go back on the same unturned drums.   Because they are worn into those drums they will like perform much better than new ones since even if the new ones are manufactured to specs won't perfectly fit the drums till they wear a bit.
73 Eldo convert w/FiTech EFI, over 30 years of ownership and counting
Somewhat recently deceased daily drivers, 80 Eldo Diesel & 90 CDV
And other assorted stuff I keep buying for some reason

badpoints

I used the old pads on the front. In the rear I used one new and one old pad on each wheel. IMG_0694.JPGIMG_0642.JPG

Tom Boehm

For anyone else out there who is contemplating a project like this, one solution would have been to have the old correct shoes relined. In some cases these days, auto parts stores don't exchange your old core. They sell new parts made in china. I have been sending out the existing American made parts to get rebuilt at old car restoration vendors. Even if they have been changed in the past and are not original to the car. The rebuilt part is guaranteed to be right and it probably has a GM, Ford or Chrysler logo on it. This adds cost and hassle to a repair project but to me it is better than trying to work around a part from china that is not quite right.
1940 Lasalle 50 series

TJ Hopland

If the old shoes were good enough to use half of why not just use them all?   

I can't tell you exactly why but mixing them like that doesn't seem like a good idea. 
73 Eldo convert w/FiTech EFI, over 30 years of ownership and counting
Somewhat recently deceased daily drivers, 80 Eldo Diesel & 90 CDV
And other assorted stuff I keep buying for some reason

Jay Friedman

#8
Quote from: Tom Boehm on October 25, 2023, 09:05:57 AMFor anyone else out there who is contemplating a project like this, one solution would have been to have the old correct shoes relined. In some cases these days, auto parts stores don't exchange your old core. They sell new parts made in china. I have been sending out the existing American made parts to get rebuilt at old car restoration vendors. Even if they have been changed in the past and are not original to the car. The rebuilt part is guaranteed to be right and it probably has a GM, Ford or Chrysler logo on it. This adds cost and hassle to a repair project but to me it is better than trying to work around a part from china that is not quite right.

Tom, I think it's the luck of the draw.  There is a brake shop here in the Atlanta area that has relined my original '49 shoes in the past.  They mostly deal with drum brakes used on large trucks and on my '49 they used the same lining material used on the trucks (and also "arced" the lining to the drums).  For some reason this lining has less "friction" than the original, so I had to press much harder than normal on the pedal to make the car stop, which was dangerous.  I looked on ebay and found lined Chinese shoes for a reasonable cost, which fit and work perfectly.  Go figure?
1949 Cadillac 6107 Club Coupe
1932 Ford V8 Phaeton (restored, not a rod).  Sold
Decatur, Georgia
CLC # 3210, since 1984
"If it won't work, get a bigger hammer."

Chopper1942

Do not mix old and new shoes! Can't tell from the pictures if the shoes are bonded or riveted. With riveted shoes, we would reline/replace them when there was 1/32" of lining above the rivet head. Bonded shoes are replaced at 2/32"-3/32".

If you have more lining left, and the lining is not cracked or contaminated, I would deglaze the linings with crocus cloth and reuse them. If there is an issue with the linings, I would look for a brake shop that can rebuild your old shoes with the correct lining for automotive use. Have them arc the shoes and then have the drum machined. Have them only turned enough to achieve a smooth surface and don't get crazy cutting a lot on each pass. If there are cracks or hot spots in the drums, they should be replaced. You can't get rid of hot spots. You can grind them down below the drum surface but they always seem to reappear.

I hope you wore gloves and a resperator when you were working with the brakes!  The old brake linings used a lot of asbestos in them. The newer linings not so much, but it is still nasty stuff to breathe.

Put a thin coat of silicon brake grease on the contact points where the shoes touch the backing plates, the slots and threads of the adjusters, and the anchor pin where the shoes contact it.

Also, if the shoes do not have a bevel on the top and bottom edges of the shoes, take a file and bevel on the linings. This will help with grabbing and chatter of the linings when brake dust builds up in the drums.

Lexi

Very good advice. And yes, hot spots in your drum's machined surface usually, if not always, have a way of rearing their ugly head even after machining. They will manifest as uneven braking. Swapping drums may help, but not really a way to solve this problem unless they are replaced. Cadillac's use of LH studs on the RH side of some model years further complicate drum swapping. Best to find a replacement. Clay/Lexi