Ok so all but 2 of my cab lights are burned out and i went to take off the mens up top to remove the bulbs and i cant get the lends to pop off..it was almost liked it was glued and i didnt want to apply too much force and break it so do i need to retry or was i going about this wrong? i removed the screws from the top that i thought held the lenses in place..and whats the best option for bulbs to go back in..maybe LED's?