OK ! Here goes ... and feel free to correct me if I am wrong,
For those who might have questions regarding swaps in the future :
They are all interchangable, except that the piping is standard SAE for the 3 bolts and metric for the 4 and 6 bots ones. So some pipe work will have to be done in orde to fit them properly. Something that can be done at a local steering shop.
" You never, ever, ever go full retard ! "
Kirk Lazarus, Tropic Thunder