Open the GE DBLR333GT1WW dryer door.
Remove the 2 screws under the top panel near the front of the dryer. Lift the top panel off of the dryer.
Remove the screws connected to the top of the front panel on the left and right sides. Move the front panel to the side of the dryer.
Remove the 2 screws on the front of the dryer cabinet near the bottom of the cabinet.
Move the drum toward the front of the GE dryer cabinet so the belt can be reached. Slide the belt off of the drum. Make a note of the direction that the belt is threaded around the pulleys. Remove the belt from the pulleys.
Position the new belt around the drum. Insert the other end of the belt around the set of pulleys, following the same direction you had noted for placement of the old belt.
Reverse the previous steps to reassemble the GE dryer.