the new shock tower bucket IS NOT welded. The only welding are the shock tower gussets. These reinforce the shock tower bucket to the frame furthermore than just the shock tower bucket bolt.
Other's have ran the system without the gussets welded. I would advise not doing so and welding them in. If you call RCD they can accomodate you. OR you could call Aaron at Dixon Bros Racing. He set me up with slightly thicker gussets than what the RCD ones were. Of course I bought my kit from him.