shocks for 1930 Model A

[JoeMarine]

I initially purchased "modern" shocks for my 1930 Model A but was totally disappointed with them.
I have since purchased four Houdaille shocks from Bratton and elected to buy the arms and "dogbone" to assemble the shocks.
I did not buy the Shock link assembly because I was told the "dogbones" were easiest to install.
That said, I have a simple question to ask.
The shocks came with the four arms and a bag with four medal cups with washers.
I don't think I need the medal cups with washers because the dogbones come with washers within the device. Am I correct?
Anybody ever install the shocks with the dogbones?
Any help would be appreciated.
Thanks
Joe