Hello Red4TBob- Please post a picture of the spare tire mount underneath when you can. I've got some dangling hardware underneath the bed in my 1959 GMC 100 and thinking it looks like it would pin up a spare tire somehow. I've got the wide side 8 ft bed and doesn't seem like there was ever a spare tire mount in it. Going to get a spare tire and hoping to get it stowed up under the bed.