FIG. 1 is a front perspective view showing my new design, the truck on which the ladder rack can be mounted being shown in phantom lines;
FIG. 2 is a rear perspective view thereof, the truck on which the ladder rack can be mounted being shown in phantom lines;
FIG. 3 is a side elevational view thereof, the truck on which the ladder rack can be mounted being shown in phantom lines;
FIG. 4 is a front elevational view thereof, a portion of the truck on which the ladder rack can be mounted being shown in phantom lines;
FIG. 5 is a rear elevational view thereof, a portion of the truck on which the ladder rack can be mounted being shown in phantom lines;
FIG. 6 is a top plan view thereof, the truck on which the ladder rack can be mounted being shown in phantom lines;
FIG. 7 is an enlarged front perspective view thereof without the supporting truck structure;
FIG. 8 is an enlarged rear perspective view thereof without the supporting truck structure;
FIG. 9 is an enlarged side elevational view thereof without the supporting truck structure;
FIG. 10 is an enlarged front elevational view thereof without the supporting truck structure;
FIG. 11 is an enlarged rear elevational view thereof without the supporting truck structure; and,
FIG. 12 is an enlarged top plan view thereof without the supporting truck structure.