Consumer Reports is a good source for information on used trucks and repair histories. Their truck and their car tests are extremely subjective and I have never found them useful when shopping for a new vehicle.
For trucks the people that try to follow the SAE J2807 testing procedure produce the most useful results. Car and Driver did that in 2012 and etrailer.com did it in 2011 for 1-ton trucks. They actually had passengers in the trucks and trailers with heavy loads attached. Imagine that, testing a pickup truck with an actual load.
My Chevy Tahoe with all the seats filled took forever to stop but the magazine tests are done with only the driver onboard and don't reveal this sort of problem. As with other trucks with defects the aftermarket people jump in right away to provide fixes and these fixes are a good indication of what problems one is likely to encounter with a used truck or SUV.
