i got some rc-monster 8mm bore drive cups for the lst diffs and then used traxxas revo extended wheelbase drive cups for the trans and i ordered dogbones from rcalloys.

simon- FYI the newest rc-monster revo motor mount does not use the nitro revo engine mount braces so it flexes a lot and kills spurs. if you get the rc-monster motor mount you should try and get the older one.

Thank you