what have you gotten done on your blazer today?
I didn't need to drop the tank on my 2000 s-10 4 door to change the lines, may be the same for you depending on what you drive.
Changed the brake light switch yesterday and a door pin switch. Got bored today so decided to nite-shades the tails to freshen them up. Installed extra 1157 sockets and used some really crappy led bulbs, into the old backup area. Didn't want to overload the stock wiring with another pair of 1157's. I had already installed those led flood lights under the bumper for backups. Never noticed the difference in the backup light coloUr till I took these pics.