How do I replicate Motor6d.Transform?

Having a bit of trouble with this. It shows on the client but not on the server. Print is running but the transform is not working.

Server:

local updateTick = game:GetService('ReplicatedStorage'):WaitForChild('updateTick')

updateTick.OnServerEvent:Connect(function(plr,camY)
	local char = plr.Character
	print(char.Name)
	char.UpperTorso.Waist.Transform = CFrame.Angles(camY,0,0)
	char:WaitForChild('Head').Neck.Transform = CFrame.Angles(camY/2,0,0)
end)

Client:

local plr = game:GetService("Players").LocalPlayer
local mouse = plr:GetMouse()
local char = plr.Character or plr.CharacterAdded:wait()

local rs = game:GetService("RunService")
local updateTick = game:GetService('ReplicatedStorage'):WaitForChild('updateTick')


--c.CameraSubject = char:WaitForChild('Head')
--c.CoordinateFrame = char:WaitForChild('Head').Position

rs.Stepped:Connect(function()
	local camY = c.CFrame.LookVector.Y
	updateTick:FireServer(camY)
	char.UpperTorso.Waist.Transform = CFrame.Angles(camY,0,0)
	char:WaitForChild('Head').Neck.Transform = CFrame.Angles(camY/2,0,0)
	for _,v in pairs(char:GetChildren()) do
		if v and v:IsA('BasePart') then
			v.LocalTransparencyModifier = v.Transparency
		end
		wait()
	end
end)