[HR&CNovaRod]

I'm used to doing manual disc conversions on the frist gen Novas so i have a question about mounting the brake booster to the firewall. Have most of you used a two-bolt mount booster and if so did it line up exactly with the two holes in the factory 1963 firewall? If so did you just remove the two factory studs and use the booster's two bolts to hold the brake pedal/dash brace in place? The kit I ordered has the wrong booster, I believe, as it has three bolts that don't want to allow the booster to align in the factory pushrod hole and have the bolts go through the bulge in the firewall properly. Also, It wouldn't allow the bolts to hold the dash brace underneath. I'm not ashamed to admit this one has me guessin!

 

[64PRONOVA]

1963 Novas used a 3-bolt booster from the factory. The lower stud attaches to a support rod that is connected to the pedal assembly.

 

[RichP]

I installed a 3 bolt booster on my 64 should be the same thing there is a dimple in the firewall where the bottom stud on the booster goes just need to drill it the booster you have does it have the clevis type end on the pedal. mine went on no problem top holes were right on and just drilled the bottom one. Just knocked out the studs on top where master cylinder came off.

 

[HR&CNovaRod]

does the rod through the booster still go through the same hole in the firewall or does it go where the black plastic plug below the hole is?

 

[64PRONOVA]

You're going to need the lower support bracket or the booster will flex when you apply the brakes. I think Novajoe was reproducing them for a while and now Chevy2only sells them too.

There are also some other parts like the brake switch actuator that you will need if you are looking to make the installation like the factory did. One thing to note is that the brake pushrod is also moved to the lower hole in the pedal assembly to change the leverage and the travel.

 

[HR&CNovaRod]

Originality doesn't concern me on this one. I can make the bracket no problem. I found the page on chevy 2 only's site that you posted and it answers my question. It does go through where the black plug came out in the lower position.

 

[64PRONOVA]

Yeah you throw the black plug seal for the manual setup away. Don't know about yours but the factory boosters have a rubber foam gasket on them that seals-off the hole in the firewall when installed.

If you don't move the pushrod to the lower hole, the brakes will be very "touchy" because the lever ratio is wrong. Most of the aftermarket boosters then have a threaded clevis on them to adjust the pedal height to your liking.