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It depends on wether or not your doing a concours restoration on your truck. If so, I imagine the carburetor has a brass cintered or paper filter in it. If you're just using your truck as a driver here are two options. Just run 3/8" fuel hose between the fuel pump and the carburetor and plumb one of these inline.
I'm not doing a concours restoration, however I'm not a fan of those plastic filters and Oreilles says the first one you listed does not fit my truck, and the second one cost $64. I'd prefer something that looks original with good filtration.
The plastic one is fine, many people use them. Your fuel system is low pressure. 3-5psi. Same as old farm tractors and old cars.
Your truck should have a filter that screws into the carburetor and maybe the metal line with a flare fitting screws into it.
Just be careful when putting the new filter on as a lot of people screw it in too far and can strip or crack the carb. It uses NPT so it does not need to be "run home" to keep it from leaking.
As said there is no problem running that plastic filter as I run one on my 81 F100 with a 300 six. It is before the screw in filter.
It is nice that you can see the fuel in it and if you look closely you can see if it has any crap or water in it if having a fuel problem.
In my case it was rust till it all got trapped with all the gas the truck used over the years.
Now if you want to run 1 of them glass type where you can unscrew it and clean or change the filter DO NOT!
The glass likes to crack with heating & cooling and then you get gas spraying all over and a fire to follow!
But it is your truck so do as you want just dont park near my truck if you run that glass filter
You can just make out that plastic filer under the air filter snorkel on my truck.
Not my truck but you can see the filer on the end of the fuel line that screws into the carb
Dave ----
Fuzzface2,
Here's where my filter is, I don't have one threaded into my carburetor. Looking closely at the picture you posted, it looks like you have one in the same place, but it's too blurry to be sure.
Last edited by Doubleclutch; Mar 29, 2026 at 12:11 PM.
Here's where my filter is, I don't have one threaded into my carburetor…
No experience with the straight 6, but that certainly looks like a non-stock configuration. The part that concerns me is the filter (with potential leak points at each end) mounted directly above the exhaust manifold.
Take a look at this thread. The first post shows a metal filter that threads directly into the carb body. The other end of the filter has reverse flare threads (like a brake line) connected to a rigid metal line. I think the general idea is any potential leak points are well clear of the exhaust:
Fuzzface2,
Here's where my filter is, I don't have one threaded into my carburetor. Looking closely at the picture you posted, it looks like you have one in the same place, but it's too blurry to be sure.
Yes I have the plastic fuel filter there and then I have the factory screw in filter at the carb.
It was just the way my truck came to me as so I kept it that way as it cant hurt anything.
I am pretty sure the plastic or metal filters the links show are less money than the one you have.
Dave ----
