The taillights on my 2000 Holiday Rambler Endeavor were old, ugly, and didn't work very well. Like with many RVs, these taillights were originally sourced from an OEM automotive application (GM square body pickup in this case). These days, there are tons of options available for upgrade.

Here are links to all the parts I used on this project:

2 sets of GM square body lights: https://amzn.to/3yTy8Wm
4x 1157 bulb sockets (for tail/brake lights): https://amzn.to/3LrUVeE
4x 194 bulb sockets (for side marker lights in housing): https://amzn.to/3G51y5w
4x 1158 bulb sockets (for reverse lights and turn signal lights): https://amzn.to/38GTaNl
This Video Shot with a GoPro Hero 11: https://amzn.to/3GTNxsL