My thought is GM welded the rear cross sill to prevent the tailgate opening from getting tweaked during use. There really aren't enough bolts with enough spacing to make a truly secure joint there, IMO. Not to contradict you Carl, but I think actual use is just as severe as man handling. Possibly the very early AK series trucks weren't welded and GM started doing that to avoid complaints.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.