Bed installation

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Oct 27, 2019 | 08:49 PM

crazy96863

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Cargo Master

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From: Northern California

Bed installation

1975 f100 4x4 short bed.

It’s been awhile but I recall there being a shim between the bed and frame on the forward two mounts. Of course I misplaced whatever it is. Judging by the marks the paint these things were about 3 inches in diameter. I believe they were thin steel; essentially fender washers. Can anyone confirm?

LMC indicates a foam insulation under all 8 mounts. I don’t recall ever seeing this during removal. Any insights to this? Thanks.

Oct 27, 2019 | 10:51 PM

440 sixpack

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Yes it's common to find them there. the reason is to fit the bed to the cab and nothing else, simply body shims.

I just pulled the bed of my high boy for the first time and there was twice the amount of washer on one side as the other.

Oct 27, 2019 | 11:21 PM

crazy96863

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Cargo Master

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From: Northern California

Any particular approach to determining the location and size of the shims or simply eyeball it where I see gaps?

Oct 28, 2019 | 02:26 AM

77&79F250

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From: S/W Missouri, Polk county

I would just get some standard 3" metal washers, but I would get some different thickness ones. Almost like a shim pack. And use them to mostly help get the cab "dent" in line with the bed "dent".