How to fix items going up without disabling CanCollide?

So i was trying some things.. for a little project i'm going to try and make and this is my problem. When i would disable CanCollide it would go through the Yellow Parts too, i dont want this. I want the Red Part to Push the Yellow Parts. How would i do this without any trouble?

This is what i got for the Red Part

local Part = script.Parent
local TweenInformation = TweenInfo.new(
    2,
    Enum.EasingStyle.Linear,
    Enum.EasingDirection.In,
    -1,
    true,
    0
)

local PartProp = {
    Position = Vector3.new(-1, 0.5, -16)
}

local Tween = game:GetService("TweenService"):Create(Part, TweenInformation, PartProp)
Tween:Play()

And i know.. someone will think about using CFrame now, but if i would do this it would just go trough the items which isnt supposed to happen! Collision-Filtering didnt work for me either (Idk if i do anything wrong) Please could anyone help me ;-;?