LLY: Factory hard fuel line diameter?

thunder550

Active member
Apr 2, 2013
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38
Phoenix, AZ
I'm swapping fuel lines from a crew cab frame over to a reg cab frame, and need to shorten them. I want to do something like the spliced trans lines pictured below, where I run AN fittings and a short length of AN line to splice the lines back together after cutting out a section. Just need to know what the OD is for the factory fuel lines. Anyone know?

transline2.jpg
 

fctry286

WhisperMax
Jul 30, 2010
254
0
0
San Diego.
I acually just did that to my fuel lines. I ended up running HP rubber line from the cooler all the way up to the motor. I used 1/2" braided line.
If you wanted to get technical you could call up Frank over at EARL's performance 714-962-6555, he could hook you up with some nice line and fittings just like the picture. But be prepaired to pay like 40ea for those red elbows.:thumb:
 

fctry286

WhisperMax
Jul 30, 2010
254
0
0
San Diego.
I cut the metal clamp around the push lock, that push lock has a barb on the end of it. plenty of length to put a line onto and clamp it down.
 

thunder550

Active member
Apr 2, 2013
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Phoenix, AZ
Gotcha, that sounds easier than what I was planning on doing. Are you running a lift pump? I'm not currently but will be at some point, want to make sure that whatever I end up doing will hold the little bit of positive pressure the lift pump generates.
 

thunder550

Active member
Apr 2, 2013
1,176
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38
Phoenix, AZ
Converted, 12mm = 0.472 inches, and 10mm = 0.394 inches.

Compared to .50 (1/2) and .375 (3/8) inches, I think the -8 and -6 AN fittings will work fine. They are only off by .028 and .019 inches respectively.

Thanks guys!
 

sweetdiesel

That's better
Aug 6, 2006
10,390
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Thailand
are you trying to crimp on a Ferrell that uses a jic (A/N) fitting?

you would be better off just running a hose over the pipe ,imo.

but each to there own.
 

thunder550

Active member
Apr 2, 2013
1,176
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38
Phoenix, AZ
I was going to do one of these style fittings that uses a compression ferrule that goes around the fuel tube. I think I am just going to use rubber line with some hose clamps though after thinking about it. Should be easier and cheaper, even after purchasing the flare tool.

165008ERL.jpg
 

S Phinney

Active member
Aug 15, 2008
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Quncy, Fl
I used that type of fitting before in 1/2" and there was zero problems with figment is leaks.

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