2024 Gmc Stepside Bed. What are the gmc sierra truck bed dimensions? Configurable in a variety of cab styles including regular, double, or crew as well as the choice of several different bed lengths, the sierra 1500 is a pickup truck that offers variety and.

The selection of powertrains is equally broad: Basically all the beds from 1989 with the gmt400 to 2019ld with the k2xx body styles will bolt up to the frame.