Help Understanding Measurements

[pcaffrey]

Have a 2016 Chevy 3/4T HD truck, 6.5 bed, gas. Glove box sticker for truck camper info lists Dim, A as 79" and Dim B as 1". Where do the measurements originate from,(ie; front of bed, rear of bed. I'm sure this refers to COG of camper. Thanks in advance.

[wnjj]

Both are from the rear of the bed. Search Google images for "truck camper loading dimensions a b".

Even better, here's the GM publication: https://www.gmfleetorderguide.com/NASApp/domestic/printbook?pdftype=camper〈=1&year=2016