Roper washer RTW4640YQ1 out of balance

Washer Repair
1

I replaced the suspension rod kit as well as added the small springs that are on more expensive washers. The washer is still out of balance and shakes as badly as before. After looking at the videos on this site is the washer drive block the next most likely culprit for my out of balance washer? If this is the case where can I get the spanner wrench shown to take off the nut that holds down the drive block. Steve