Sorry to hear your story Pickled, but don't give up. I checked those cvd last night and all of them are not tight enough. See, the only thing they assemble for us is giving us problems; imagine if this is RTR.
Mine was the 2nd D3 here but haven't run yet. The first one on the track have the "click" sound on first punch of throttle. I listen vary close to it and also found the clicks came from rear. Every part seems installed properly and the belt are tight enough. Will share if we found cure for this.