u/Full-Muffin3363

I want to make these slide in unison for my school CAD project but my teacher doesn't know how to help. However when I mate the bucket to the slider it over constrains it

https://preview.redd.it/ktwslcjwz6zg1.png?width=1312&format=png&auto=webp&s=3fe51b947871048e5a566c73d085c46edc01acd8