To replace the dome light gently squeeze the lens to release the clips and remove. Next release the bulb from its mount. Install the new bulb and replace the lens.
Chevy didn't make a 1981 Celebrity
Yes it would be easer to get at it with the dog house removed.
No.
You need to be more specific. What year is your Chevy Celebrity and is it on the front or rear of the car?
Which engine does your 1982 Chevy Celebrity have? Is it the 2.5L 4 cylinder or the 2.8L V6? They are very different.
Which engine does your 1985 Chevy Celebrity have? The two engines are very different.
If the cable is broken you should replace it.
The dog bone is not repairable, simply replace it.
Replace the seat belt.
Please clarify your question as in front or rear axle.
If I had to replace a fuel line I would get a replacement out of a car in a wrecking yard and install that.
OK, you have a 1982 Chevy Celebrity. Do you have a question?