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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

Brake Line Help??

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Old Oct 15, 2025 | 02:18 PM
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Brake Line Help??

Help me identify these fittings, please? They came off the front brake lines from a 1969 F100 4x4. Sadly, brake lines for my truck seem to be nonexistent. Would F250 4x4 lines work? Anyone with tips, tricks or product suggestions would be greatly appreciated.
This goes into the Tee block on front axle. It extends to Left wheel. Has a hard line (3/8” IF) connected to other end. Is it an AN or NPT fitting? (Pic 1)
This goes into the Tee block on front axle. It extends to Left wheel. Has a hard line (3/8” IF) connected to other end. Is it an AN or NPT fitting? (Pic 1)
This goes into the Tee block on front axle. It extends to Left wheel. Has a hard line (3/8” IF) connected to other end. Is it an AN or NPT fitting? (Alternate view of Pic 1)
This goes into the Tee block on front axle. It extends to Left wheel. Has a hard line (3/8” IF) connected to other end. Is it an AN or NPT fitting? (Alternate view of Pic 1)
This goes into the Tee block on front axle. It extends to Left wheel. Has a hard line (3/8” IF) connected to other end. Is it an AN or NPT fitting? (Alternate view of Pic 1)
This goes into the Tee block on front axle. It extends to Left wheel. Has a hard line (3/8” IF) connected to other end. Is it an AN or NPT fitting? (Alternate view of Pic 1)
Tee block on differential. I think this side has 3/8” IF connector, as the braided flex line going to Right brakes has a 3/8” IF.
Tee block on differential. I think this side has 3/8” IF connector, as the braided flex line going to Right brakes has a 3/8” IF.
Close up of right side of Tee block
Close up of right side of Tee block
Left side of Tee block. Threaded connector from top pic was threaded into this.
Left side of Tee block. Threaded connector from top pic was threaded into this.
Close up of previous pic
Close up of previous pic
 
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Old Oct 15, 2025 | 03:28 PM
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I found all the correct hoses at my local napa. I can give ya the napa part #s if you want. If you need to replace the line that runs along the top of the front axle I would make it out of metal as the new rubber/steel line was very expansive.
 
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Old Oct 15, 2025 | 04:00 PM
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Well, I couldn't find the napa part #s, but here's the lines I got. The left line from the splitter to the left brake is the standard left front f100 2x4 line. The right line that runs over the axle was the close to the right front line for a 1975 f150 4x4. If I had to do it again, I would just make an all metal line for the right side like the rear axle has. The splitter line was easy to find.
 
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Old Oct 15, 2025 | 04:08 PM
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Your old lines are the factory original parts as they have a single crimp from rubber to the steel ends in 72 federal law called for this to be changed to double crimping.
 
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Old Oct 15, 2025 | 04:24 PM
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Originally Posted by WDXPW
Your old lines are the factory original parts as they have a single crimp from rubber to the steel ends in 72 federal law called for this to be changed to double crimping.
I gathered that they’re original. Hence the need to replace since they’re also cracking and clogged.
 
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Old Oct 15, 2025 | 04:38 PM
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Brake fittings are AN type, no npt that I know of. I use Crown Performance for my flex lines, 5 layer vs std 3. Tube connections are a double inverted flare. Steel and CuNi are pretty easy to do. SS is a little harder. The new Hyd flaring tools would make easy work of it. I still use my old 40+ yr manual set to make of lines, goes up to 5/8". As lone as you lube the cones it's not that bad. A good tubing bender is a must if your making up lines.
 
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