It has been better than ten years since Volvo removed the White/GMC *name from its products and began to sell under the Volvo banner exclusively. So this transit mixer I saw Thursday has been on the road for at least that long. It still looks good and will be around for a while longer.
Volvo bought out the insolvent White Motor Company in 1981 and started a joint venture with GM to produce White/GMC in 1988. Volvo bought out GM's interest in 1997, and after selling the Autocar name in 2001 has sold exclusively under the Volvo brand.
Ocean Contracting has a fleet of mixers and dump trucks of the same vintage still running.
[* a sneaky way to introduce the letter M into the March M trucks theme.]