OK, I'm asking this, just to make sure someone before me didn't change something on my 74 F-100. On that truck (the 74 F-100 2WD LB), it has manual brakes and also has disc brakes on front. The proportioning valve on the truck is located just below and slightly in front of the master cylinder. Is that where it is supposed to be?

On my 77 F-150, the proportioning valve is located quite a ways down under the master cylinder, close to the ground.

 

Here's the illustration from the Ford parts catalog. It looks like your system is correct.
Also here is a not too clear picture of a '75 I have as a donor truck.

 

Then the issue I have with five of the eight brake lines inline tube sent me is huge. It looks like they sent me lines for a truck whose proportioning valve is a LOT further away from the master cylinder than mine. Gotta call them today.

 

On my '73 the proportioning valve is mounted inside the frame rail, below the drivers seat.
Just a note, the lines in the picture are Inline Tube's stainless set.
With all the problems you're having, it sounds like they just flat out sent you the wrong set.

 

Interesting, my setup is like your 75 Donor truck. Whatever, for the 74, they have sent me incorrect pieces.

 

does your 75 have power brakes? might make some subtle difference in the tubing distances, etc., though inline doesn't ask you if you have power brakes. But what it does is it puts the MC a little further out.

 

Yes, the '75 has power brakes but I don't see any differences listed in the parts catalog between power and non-power brakes concerning the prop. valve.

 

D5TZ-2B257-B .. Prop Valve / Marked: D5TA-2B524-FA or FB

1975/79 F100/150 2WD/4WD / 1975/79 F250 2WD with single piston caliper disc brakes / 1976/79 Bronco / 1978/79 F250 4WD / 1979 F350 4WD

 

I got up with InLine tube today. Here's the deal. According to them, on most 74's, the brake proportioning valve is slung up under the truck. On a few, the valve is located just under the master cylinder. That's the way mine is. They have the correct pattern and will be sending it out shortly. As for the fuel line that isn't quite right, I'm going to try to dry fit the rear piece even though it isn't a match for the original, to see if it would still work - it might...
Otherwise, InLine wants me to send them my old fuel line to them so they can build me a new one.

 

I've always had good experience with Inline. Too bad you've had problems, at least it sounds like they're trying to make it right.
Hopefully things will work out to your satisfaction.
Update us when all the dust settles.

 

"I was talking to a guy at premier rubber here in Portland when I was buying some replacement fuel line. I was replacing the rubber hoses on my tank switching unit, because they were looking really old and brittle.
He told me that the rubbers need to be replaced regularly, due to the alcohol in the ethanol eating through them after time. I still have some left and plan to replace all the rubber fuel line with new stuff to prevent stuff like this."
Hi Mike I was looking at your pics with inline the other day and saw the rubber line connecting front and rear fuel line,and was going to ask about todays fuel and that set up,then i read this post,and wanted to get your thoughts on it.Is this what inline recomends? "SAE J30 R9 is the spec you need. R6 is not ethanol resistant." Looks like another member answered that readily.

 

From the way I read the SAE J30 spec., all J30 hose meet the same specs when it comes to ethanol fuel degradation. The "R" part has more to do with pressure, R6 is okay for carbs not fuel injection. R9 is for fuel injection.
If I'm wrong, someone correct me.
Personally I would use the R9 simply because it's built to withstand higher pressure.