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I measured across my frame to check and see if it was bent. Best I can tell it is.
I think it is supposed to measure 34 inches across at the rear wheels and continue to the end. Mine measures 34 inches at the front spring hanger for the rear spring and tapers to 33 1/4 at the end. Is this enough to worry about or is this something that should not cause any problems, or is there something that I am missing?
Not much back there to be concerned about.
If it will make you feel better put a piece of angle at the rear that will bring it back out to 34"
These ladder style frams are built to move around.
I just took my front bumper off my f1, and it flared out to 32 1/2". It's 32" from the cab mount up to where the front spring shackle is, then flares out to the front. My first thought was darn(ok a different 4 letter word), but after looking at it for awhile I figured as long as the front of the truck's shackle is straight back to the rear end's rear shackle, it's all good. (32" to 34" on mine of course) meaning the vehicle tracking should be straight. Tweaking the bumper to make it fit shouldn't be too bad, but who knows, lol.