[Goatracer1]

Has anyone added power disc front brakes to a 1962 full size Pontiac? What did you use for a master cylinder and brake booster? The previous owner added Ames's disc brake kit which DOESN'T come with a booster or master and it doesn't stop worth crap. I don't know what the booster is. It had a 1 inch bore master cylinder and I changed it to a 1&1/8 bore which works better. The brakes were so touchy before I could hardly drive it. Now it is ok at normal stopping but it won't stop at higher rates. I also can't lock any of the wheels. The booster looks to be very small. I tried to measure it and the diaphragm appears to be about 7" in diameter and about 8" overall. Master Power Brakes recommends a 9" dual diaphragm booster but it is $329 plus shipping and they can't guarantee it will fix the problem. Besides it's on backorder anyways. Any help will be greatly appreciated. I'm trying to get the car good enough to drive to the POCI convention.

[Scarebird]

Pix of the booster?

[Goatracer1]

Sorry I tried to post pictures but I must be doing something wrong. What is correct way to include a picture?

[Stuart]

Click on Post Reply, enter your text, then scroll down below the text box to where it says Manage Attachments and click on that. A new window opens up and from there you should be able to upload pictures from your computer.

[Goatracer1]

I did all that but after I loaded the pictures I didn’t know what to do. Sorry I’m old and technology illiterate

[Stuart]

If you like, you can email the pictures to me and I'll post them for you.

[Goatracer1]

Here are the pictures I hope

[Goatracer1]

One more.
I can’t believe there is no one out there that has installed disc brakes on a 1962.

[tom s]

Call Ric Johnson,708 6720101.I think he put them on maybe 20 years ago on his race car.Tom

[mgarblik]

I think there are fewer conversions on 62 and other full size from the era because of the popularity and look of the eight lug wheels many wish to retain. Also, 8-lug wheels with GOOD drums will stop nearly as well as disc brakes unless you are talking about repeated high speed stops like road racing. That tiny 7" booster looks to be suited for a 1000 lb car like a Morris Minor or an MGB. Not a 4000 lb. + full size GM car. A dual 9" would be a huge improvement.

[Scarebird]

Originally Posted by mgarblik

...That tiny 7" booster looks to be suited for a 1000 lb car like a Morris Minor or an MGB. Not a 4000 lb. + full size GM car. A dual 9" would be a huge improvement.

Truer works have not been spoken today.

Those ing 7" boosters cause us no end of grief.

[Goatracer1]

So the consensus is that the 9” dual diaphragm booster will cure the problem?

[Richie Hoffman]

i did 62,catalina used power booster and master from master power brakes worked perfectly

[Scarebird]

Dual 9" is good down to 9 inches vacuum from personal experience.

If you can fab brackets a 1985-87 S10 BK code unit will work quite nicely.

[Goatracer1]

Richie do you have part numbers for Master Power’s booster?

[Goatracer1]

Scarebird what kind of brackets need to be fabricated?

[Scarebird]

You may need standoff pieces. If the holes are around 3-1/4" square pattern you may not need them at all.

[Goatracer1]

Thanks