Here's the old '70 towards the end of it's service to me.I used to load those racks to the hilt,along with a full bed of materials,and bins stuffed with tools:
used to load this '71 just as bad,except the bins didn't hold as much and the load just hung out the back more:
Here's the '72 with a load of parts.I slapped the racks on this one,too,just don't have pictures handy:
The '72 GMC hauling a '71 Chevy:
Here's the Highland with the racks loaded.I took a day off work to move from my shop,so the bed is loaded with shop stuff and more on the trailer:
The white one hauling parts: