Light bulb's in sleeper, I can't figure out how to replace them.

Most chrome shops carry those covers, quite a bit cheaper than Pete. Easier dealing with too

 

Mr. Cob,

DO NOT PRY OFF CLEAR COVER
unless it's the pry off tyoe
(if it sticks out a hair lower than the molding, it's pry off.
If it seems to be under the molding it's not a pry ifg)
Replacing florescent lights are easy...
Procedure for (most) Peterbilt 379's...
* NOTE.. both should be replaced at the same time.
1. Do NOT try to remove clear plastic, it is permanently glued to roof molding.
2. There should be 2 screws, one on the left, one on the right.
- the may be covered with a "screw cap" so they blend in.
3. Locate them, where the molding on the roof holding the plastic in place curves upwards, to the highest point in your sleeper
4. Remove caps
5. Remove screws.
- large section of roof molding/interior should now drop down several inches.
6. Remove both florescent bulbs.
7. Replace with standard "bright white" 15 or 18 inch (vehicle specific size), florescent bulbs
8. Clean inside of clear plastic lens
9. Carefully push molding/interior section back into place.
10. Replace both screws and screw caps.

 

I included 2 pics, they look like small screws, but they're not the regular size.
Like I said those two schools come out and the entire piece drops down a few inches you'll be able to access the lights. I'll include one more photo of the screw (right side), and hopefully will be a little bit easier to see.
I've already taken the screw cap off.

 

Mine isn't made like that at all.

 

Up load a few pictures.

Mine is a '05 379.

 

I have a '05 379 as well.
If you have any questions, I'll be happy to help