How do I know what size brake line I need?
The answer is really pretty easy. Almost every car or truck worldwide utilizes a 3/16-inch brake line, also referred to as a CNF-3. The other most common brake line is the ¼ inch. This size was routinely used in the 1950s, so if your truck or car was manufactured in that era, you would need the ¼ inch.
Does brake line diameter matter?
Brake lines are most often 3/16- or 1/4-inch diameter and, while there will be no pressure difference between the two, there will be a difference in the amount of fluid delivered.
What size brake lines are on a 1970 Chevelle?
However, on the 70 Chevelle kits, they use 3/16″ for the front disc and 1/4″ for the long line to the rear drum brakes.
What is the next size up from 3/16 brake line?
The two most common brake lines found are 3/16″/4.75mm and 1/4″. The smaller size is 3/16″/4.75mm brake line, CNF-3; and the larger size is 1/4″, CNF-4.
What size fits a 3/8 brake line?
The most commonly confused sizes are 3/8” with 10 mm, and 7/16” with 11 mm. The 3/8” x 24NF will screw into M10 x 1 thread but not the other way around, so always try to screw M10 x 1 into 3/8” x 24NF to see if you have a match.
What brake line should I use?
The best brake line material is considered to be stainless steel because they resist both punctures and rust.
What is a good brake line thickness?
¼ inches
Ideally, your brake pads should be thicker than 6.4 mm (¼ inches) for proper functioning. If it’s thinner than this, consider getting a replacement soon. Most car mechanics also agree that the bare minimum brake pad thickness is 3.2 mm (⅛ inches).
Are all brake line fittings the same size?
The most commonly confused sizes are 3/8” with 10 mm, and 7/16” with 11 mm.
How do you size an fitting?
AN Fittings and Hose Sizes Chart
| AN Size | Hose / Tube O.D. | SAE Thread Size |
|---|---|---|
| -2 | 1/8 in. | 5/16 in.-24 |
| -3 | 3/16 in. | 3/8 in.-24 |
| -4 | 1/4 in. | 7/16 in.-20 |
| -5 | 5/16 in. | 1/2 in.-20 |
Are copper brake lines Legal?
Due to the terrible history, the use of copper brake lines became illegal. Since the release of the new copper-nickel solution, the product is legal to use. The Copper Development Association is now opposed to copper brake pads. They are trying to reduce the amount of copper used in automobiles.
Do braided brake lines make a difference?
The main benefit of braided brake lines is that they help improve performance by reducing the issue of swelling, most commonly associated with the standard rubber brake lines. Over time and extensive use, rubber lines can swell under the pressure caused by applying the brakes.
Is 5 mm on brake pads OK?
Ideally, your brake pads should be thicker than 6.4 mm (¼ inches) for proper functioning. If it’s thinner than this, consider getting a replacement soon. Most car mechanics also agree that the bare minimum brake pad thickness is 3.2 mm (⅛ inches).