The ornamental design for a ride on toydumptruck bed, as shown and described.
FIG. 1 is a first perspective view of the ride on toy dump truck bed of the instant invention shown for illustrative purposes in assembly with the toy dump truck;
FIG. 2 is a second perspective view of the ride on toy dump truck bed thereof;
FIG. 3 is a third perspective view of the ride on toy dump truck bed thereof;
FIG. 4 is a fourth perspective view of the ride on toy dump truck bed thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a left side elevational view thereof;
FIG. 8 is a right side elevational view thereof;
FIG. 9 is a front elevational view thereof; and,
FIG. 10 is a rear elevational view thereof.
The portions shown in broken lines and indicia are for illustrative purposes only; and form no part of the claimed design.