Thanks JohnRR, my bell housing bore measures 8-9 1000th total out, just on the cusp of needing dowels. I also DID have an input shaft leak which I just had repaired after a glazed clutch, I'm fascinated that you thought of that. My input shaft was pitted at the seal which is what we are attributing failure to, not out of round....or could it be? regardless, it's engine oil dripping off the dust collector, not tranny fluid.