I'm swapping an A568 into the Z to get it ready for SDAC (damn that rhymed ) and the A523 mainshaft (pinionshaft) has a chipped tooth if I have to I'll put it in anyways, but I'd rather not. If you have a A523 mainshaft with ring gear (or even without), or even a whole A523? I'll buy it and pay for some madfast shipping (maybe not ship a trans ), or pick it up if you're local. LMK whatcha got... ASAP! THANKS!