Brake linings confusion.

[Agv63]

Hi.

I'm from south africa, and have a 63 c10.
Rhd, and somewhere in its life more than 20yrs ago(i know this truck for last 20 yrs as it was my friends) it got gmc emblems.
Was a 283, then a 250,3spd and now a pontiac 455 with a switch pitch 400.
12 bolt rear, 17 spline (not for long, got some 5 lug replacements coming)
With press on backings, im searching for brake linings and found that up to 63 one part number and 64 on another part number, what is the changes between them?

Gonna try and upload some pics, as i see the trend here is pics galore😄.
Added g20 hd front arms and disc, and going corvette rallye wheels, still buzy with this conversion currently. Pics will be when it had drums and 6 luggers.
And some when i was finishing the 455 install.
Cheers,
Adriaan.

[Wrenchbender Ret]

They switched to self adjusting brakes about 1963. The size is the same but some of the holes in the shoes are different.

George

[Agv63]

Originally Posted by Wrenchbender Ret

They switched to self adjusting brakes about 1963. The size is the same but some of the holes in the shoes are different.

George

Thank you for the reply.
Trying to figure out the differences thru the years, and what can work for me as almost all parts is imported,

Adriaan.

[joesscamaro]

Thanks for posting and sharing some pictures and highlights of your truck!

[Gatt65]

That looks like a really nice truck!

[cwcarpenter98]

If you want the self adjusting brakes for the rear, order parts for a 65 or so axle. Maybe it's changed since then, but 8 years ago when I was ordering new parts for my brakes, the rear hardware kit that I ordered for a 63 was not for the self adjusting brakes

[Agv63]

Originally Posted by cwcarpenter98

If you want the self adjusting brakes for the rear, order parts for a 65 or so axle. Maybe it's changed since then, but 8 years ago when I was ordering new parts for my brakes, the rear hardware kit that I ordered for a 63 was not for the self adjusting brakes

Hi, thanks for the tip.
Will check later on what i have. Some things is still the original setup and some changed.

Adriaan.

[Agv63]

Originally Posted by Gatt65

That looks like a really nice truck!

Thanks. Not a show stopper body wise but not a trailer queen. Gets used all over.
Still sorting some items as i go.

Adriaan.

[Agv63]

Originally Posted by joesscamaro

Thanks for posting and sharing some pictures and highlights of your truck!

Thanks.
Have been buzy a while checking thru the older posts, notice a trend of pictures being posted, so i added some of mine.
Wil get some later on from inside, some things on our ZA models is different compared to USA models.

Adriaan.

[aerotruk63]

If your on Facebook.
Exclusively 1963 Chevrolet and GMC truck.
Would enjoy you sharing pictures in our group.

[Agv63]

Originally Posted by aerotruk63

If your on Facebook.
Exclusively 1963 Chevrolet and GMC truck.
Would enjoy you sharing pictures in our group.

Thanks for invite, but not on facebook or any other social media, tried it, but not for me.
Spend most of my time on my cars, always something to do or repair.

Adriaan.

[mr48chev]

For the most part, the later same size (diameter and width) shoes for later model rigs with self adusting brakes supercede the earler non self adjusting shoes. You just have left over holes if you don't use the self adjusters.

If you know what the rear end is out of Rock auto usually shows several brands of shoes that fit with proper part numbers, They also give diameter and width. armed with knowing the ID of your drum and the width of your shoes you can come up with a part number to walk into the local parts house with The Delco or Raybestos numbers will cross anywhere.

[Agv63]

Thank you, will check into it.
It's the std 11" dia x 2". I looked yesterday, its non self adjusting.
At this stage i'm still waiting for my conversion axle kit to arrive, new 5 lug drums in the kit, which is estimated around mid may. So got some time to do checking on replacement shoes, and sourcing parts, and some new wheel cylinders for my own minds rest, those thoughts of wondering if a worn cyl will seal up and last under pressure will at least be gone.

Thanks.
Adriaan.

[JPBrecheisen]

Do you have a brake and clutch relining shop nearby?

Sometimes they can put new linings on your original shoe. I've done that with some of my stuff where clutch kits and brake shoes aren't available.

If the wheel cylinders aren't pitted too bad, you can run a hone in them and just replace the cups and seals also.

Just depends on what you may have in the area for services and tools/parts

SP400 transmission with a 455. That must be a neat driving truck. Had a Buick with a set up like that except it was the 430 engine.

Great truck you there.

Jonathon

.

[Agv63]

Hi.
Linings can be redone , just waiting for new 5 lug conversion kit, new drums in kit.
Was checking up on new shoes so saw there is differences in years listed.
Judging by the dark blackish colour from brakefluid before i changed master cylinder i would suspect wheel cylinders might be pitted, will confirm that this coming weekend when i do some work there.

The sp400 is still in low pitch, with the 455 torque and 3.73 rear there is no difficulty in lighting up the tires, even with 31/10.5s.
Going to 33s and adding wires and switches for the pitch function so will see on that a bit later, still got some stuff to sort with the disc conversion.

Cheers.
Adriaan.

[Agv63]

Little update. Finally got the axle conversion kit. Just had to get 63 axle seals, from what i am seeing the difference between 63 and the later type is od and 63 have another outer lip most probably dust deflector of some sort. The od is different by 1mm or .040" . Later type being bigger.

Also had a bit of luck with the shoes. I forgot about them, but found a spare set in the garage cupboard. Must have ordered a second set waaay back then for spare for my impala. At least some savings for the budget at this stage. Staying manual adjusted for now, budget is only so much and new brake pipes is getting priority after a pipe on differntial broke off just trying to loosen tube nut. Pipe is really thin from wear on outside.
Wheel cylinders was replaced somewhere in its life.
Only had one piston stuck, luckily by dirt and not oxidising. New seals installed.

Sadly they are not 1" bore. 1 ¹/⁸ in size. Funny thing is it worked without locking up. Not sure if it could be the big wheels or something else. Original master was 1 ¹/⁸ as single circuit , i changed to a 1" drum/drum master that came from my impala. Changing to corvette style master now with gm style prop valve. Will probably have to get an adjustable valve to limit rear pressure a bit more just for incase.

Cheers.
Adriaan.