Is a GMC truck just a dressed up Chevy truck?

Demonracer said
During the 67 to 72 year span, the Chevrolet trucks had coil rear suspension and GMC had leaf spring rear suspension.

There used to be many small differences. Now, the car companies throw a different badge on it, and tell ya it's different. I remember when trucks were used as trucks....and rode, handled, and took the punishment they were designed for. Street going farm implements.