Charles, 20 bags in the back...I'll give him that. I could probably do that when stacked just right. 40 bags...I say BULL
However, we don't use bags of fert for arm rests in the cab of the truck.
If you need to carry 40 bags of fert, you need a different setup....perhaps a flatbed or a box truck.
...or in my case, a trailer.
"The Poor Fish" circa 1930's: The Poor Fish wouldn't have been caught if he'd known enough to keep his fool mouth shut.