romancommander

iTrader: (1)

So I'm plumbing the brake system on my 73 Nova and bending up all the new hard lines. I am running the entire brake setup (minus ABS) from a 2002 camaro, master cylinder, booster, calipers, flex lines. I already have the 4 bubble flare nuts that go to the caliper brake lines. They are M10 x 1.0mm.

What I need help with:

1. What size are the nuts going into the 98-2002 camaro master cylinder?
2. What size are the nuts going into the rear axle junction flex line, all three?

Thanks guys!

romancommander

iTrader: (1)

Ok I found #2. Turns out going to the calipers are 3/8-24 x 3/16 line. I had a nut laying around and sure enough it screwed in. The long end appears to be 12mm x 1.0

Found the info here.

http://shbox.com/1/brake_pipes_rr.jpg

romancommander

iTrader: (1)

Well after scouring the internet for a few hours I think I found the answer to #1. Two different sizes.

M12x1 bubble flare
M11x1.5 bubble flare

romancommander

iTrader: (1)

Im gonna drop this here to hopefully help someone in the future.

To convert a cars brake system over to 4th gen f body 98-02 camaro firebird, the fittings are:

Master cylinder

M12x1 bubble flare
M11x1.5 bubble flare

Brake lines at calipers

10mm x 1.0 bubble flare

Rear center brake line

From Calipers (qty 2) = 3/8-24 inverted flare
To Master cylinder = 12mm x 1.0

Gotta love that on the 4th gen F body GM used 2 non metric fittings in a sea of metric. Some good info here.

http://shbox.com/1/brake_pipes_rr.jpg


****I'll be using adapters to go from**** :

11mm x 1.5 to 3/8-24---------Master cylinder
12mm x 1.0 to 3/8-24---------Master cylinder, rear center flex line
1/8" npt to 3/8-24 -------------Summit Line lock

So the hard lines I have to make on my Nova should be:

1. 3/8-24 to 3/8-24 Master cylinder to line lock.
2. 3/8-24 to 3/8-24 Line lock to Prop valve "in" front.
3. 3/8-24 to 3/8-24 Master cylinder to prop valve "in" rear.
4. 3/8-24 to 10mm x 1.0 Prop valve "out" to caliper left front.
5. 3/8-24 to 10mm x 1.0 Prop valve "out" to caliper right front.
6. 3/8-24 to 3/8-24 Prop valve "out" rear to rear flex line in.
7. 3/8-24 to 10mm x 1.0 Rear flex line to caliper left.
8. 3/8-24 to 10mm x 1.0 Rear flex line to caliper right.

Edit: Ended up not having to use any adapters. Autozone in the back carries metric nuts for 3/16" line.

pdquick01

iTrader: (3)

Thanks I've been searching for info myself!

romancommander

iTrader: (1)

I ended up not having to use 1 adapter. Autozone in the back has a pretty extensive selection of metric fittings to 3/16" brake line. They had the M12 and M11 to 3/16 line fittings.