It is important to inspect the kit and then look at the parts you are removing as sleeves and bushings will vary slightly depending on where they are used. For example, some bushings look the same, but the shoulder is slightly thicker on the same set. My 13 and 11 year olds disassembled and reassembled with a little help figuring out which socket and socket went where, and one assembly per side. With only bits of a few jacks left in our shopping cart, we had to play around a bit to figure out where the jacks should be, but simple counting will help decide where to put them. I would buy them again.