Discs with 15s

[70staged]

I decided to change the direction of build for my car. Was going to run bigger rims but decided I still want to run 15inch rims instead. Mainly cuz I want to use dog dish hub caps (but will have all aftermarket suspension.) so I am looking for a 4 wheel, power? disc brake set. 1970 Buick Skylark (manual drums) with a 72 Olds 10 bolt. What do you guys suggest?

[rustomatic]

Check with SSBC--they or others may have up to a 12-inch system (consider 14-inch theoretical diameter with the caliper on) you can use inside of a 15-inch wheel. Wilwood has brakes for everything. My fronts are a whopping 11.5 or so, and have plenty of room to spare...

[Apogee]

Maybe the Wilwood Dynapro 6-piston kit up front (140-10510) with a Dynalite 4-piston kit in the rear to match? What's your intended use the vehicle? Brake budget? Expectations? An OE disc/drum setup might be fine depending on your intended use.

Tobin
KORE3

[70staged]

Right now I have manual drums at all 4 corners and would like better stopping. I don't plan on doing any auto cross. However I would like to have power disc brakes at all 4 corners.

[Bryce]

I have the 11" baer SS4 inside a 14" wheel. Wanted to keep them because they are real magnesium. Brakes work great, it helps that the mustang weighs under 2700lbs.

[Mr_Roboto]

You're in pretty much the same boat I was, except I had 14s. I ended up going with a set of GTA Wheels and am working on/at the LS1 brake swap.

Are you on a budget? If so do you mind iron calipers? If not, then the early 2000s Impalas and Cadillacs use LS1 Camaro rotors (they cross ref, check an auto parts store page) and a cage style caliper similar to the "LS1 brake" swap. I'm not sure how positioning works out compared to the LS1 brakes, but fabrication of the brackets should be similar and need only minor tweaks. The B-body swap will also fit under 15s, as the majority of B-cars, Astro vans and 1/2 ton trucks out there came equipped this way.

If you've got the bank, do the SSBC etc. brakes. Another option if you want aluminum calipers etc. may be the Blazer caliper swap.

[PT Sportwagon]

I have the 11" baer SS4 inside a 14" wheel. Wanted to keep them because they are real magnesium. Brakes work great, it helps that the mustang weighs under 2700lbs.

That is what I was thinking for my build if I stay with the 14/15" Motorwheel Spyders. Then use S-10 rear discs.

Tim

[car_designer]

Right Stuff Detailing might be another option. They have a 4-wheel disk conversion kit. Their instruction recommends using 15" wheels or larger.

I just bought this kit, but probably won't be installing it for a while though. From what I hear they make good stuff. I know a few people around here that have used them.

[Nicks67GTO]

Right Stuff Detailing might be another option. They have a 4-wheel disk conversion kit. Their instruction recommends using 15" wheels or larger.

I just bought this kit, but probably won't be installing it for a while though. From what I hear they make good stuff. I know a few people around here that have used them.

I have the complete power booster kit, prop valve, lines, braided soft lines, powder coated calipers and drilled/slotted/zinc'd rotors on my 67' GTO. The kit works great for around town and has hauled my sled down from 130mph+ to 0 before without issue and in what i felt was a reasonable amount of time...though I could smell them getting pretty hot after that test. I had to shorten my emergency brake cable and mess around to get it to work but with all the bitching I've heard about how that caddy e-brake setup has issues, it works good enough to hold a 4000 lb car/driver by itself, in neutral on a hill. I call that a win. Any questions about it PM me

Front



Back



Booster/Master/Prop valve

[novaderrik]

spindles from a 77-96 B body with the HD brakes will get you 12" brakes that fit a 15" wheel.. the bolt pattern is the larger 5X5 pattern and a bigger center hub diameter, but a set of 90-92 F body 1LE rotors fixes that except with 12mm studs instead of 7/16"- but i think ARP makes a 7/16" stud with the same knurl size as the 12mm studs..
then you just get a set of upper control arms for the "tall spindle" setup, and you will have HD brakes that you can get service parts for at any parts store in the country for less money than a complete aftermarket setup.

for the rear, either later S series truck, F body, or even 94-96 B body will get you the parts you need..

another option for the front that fits some 15" wheels: 88-96 C4 Vette light duty brakes with 12" rotors that fit over your drum hubs and mount to the spindle with a simple bracket made out of 1/4" steel.

[car_designer]

I have the complete power booster kit, prop valve, lines, braided soft lines, powder coated calipers and drilled/slotted/zinc'd rotors on my 67' GTO. The kit works great for around town and has hauled my sled down from 130mph+ to 0 before without issue and in what i felt was a reasonable amount of time...though I could smell them getting pretty hot after that test. I had to shorten my emergency brake cable and mess around to get it to work but with all the bitching I've heard about how that caddy e-brake setup has issues, it works good enough to hold a 4000 lb car/driver by itself, in neutral on a hill. I call that a win. Any questions about it PM me

Good to hear you are happy with their kit. Now to find time to install it.

[woody80z28]

spindles from a 77-96 B body with the HD brakes will get you 12" brakes that fit a 15" wheel.. the bolt pattern is the larger 5X5 pattern and a bigger center hub diameter, but a set of 90-92 F body 1LE rotors fixes that except with 12mm studs instead of 7/16"- but i think ARP makes a 7/16" stud with the same knurl size as the 12mm studs..
then you just get a set of upper control arms for the "tall spindle" setup, and you will have HD brakes that you can get service parts for at any parts store in the country for less money than a complete aftermarket setup.

for the rear, either later S series truck, F body, or even 94-96 B body will get you the parts you need..

another option for the front that fits some 15" wheels: 88-96 C4 Vette light duty brakes with 12" rotors that fit over your drum hubs and mount to the spindle with a simple bracket made out of 1/4" steel.

I'm running 12" 1LE front and 11.6" S10 rear on my car and it cleared the stock 15" steel wheels.