I'm going to guess scout. The one I have is 4wd so it's a leafed front axle.
I say scout because a-arms, boxed rails, torsion bars?, and the frame tip look diffrent than all the full size 63-74 full size that I've had.
Is it 5 lug rims by chance? Measure wheelbase also, ill compare to what I have around
This isn't my picture so I can't do any measurements. I'm trying to get an idea of what a Travelall frame might look like. Is it boxed at all and do all International trucks have the the two rails that angle in? After looking at it I think you are right about it being a scout. Are any of the full size ones boxed?
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