10.5" flywheel for a slant 6?

@kesteb - I used a big block scattershield, like Hyperpak did on his recently completed Lancer wagon. I agree with those who told you that putting the heavy cast iron truck bell housing in your Dart for the 143 tooth flywheel would require a lot of metal work. That thing is a beast both in size and weight.

@gregcon - if your referring to the 143 tooth flywheel the only passenger car bell housings for it were big block passenger car, typically 440 6Pack or Hemi but I think optional on other big blocks.