Depends on your view of a lot of work, and the type of mount. My little Western mounts on my Blazers are 6 bolts. About twenty minutes. I'm sure some are much harder, but is a 1-2 hour job twice a year that bad? Also, the Western Uni-mounts can drop their lower mounts by pulling a few pins. A couple minutes if it's all loose. Can't see anything when your done. Don't know about others.