Definitely good questions to ponder. Or even an heavy duty conversion like below ... does it work well without the balancer due to the heft of the upgraded components?
The article you posted is quoted with, "What’s the difference between heavy duty and super duty? Well, the Tom Wood’s Super-Duty 231 conversion kit comes with the manufacturer’s unique rear output flange that allows the installation of a 1210, 1310, 1330, and 1350 series driveshaft with a conventional two-joint CV (double-Cardan) setup, or a 1410 seriesMorris 4x4 still sells new ones!
Also, wish we could ask @mrblaine his thoughts on the topic.
Tom Wood may also have more information it seems. @bobthetj03 , would you mind writing a note to Tom Wood on this subject? You can just point him to this thread perhaps. Or PM me his email info to me and I will write an email.
View attachment 61296
conventional two-joint driveshaft, all without changing the flange."
JB Conversions still offers the rear output companion flange yokes (far better than a eared yoke IMO on many fronts) on their 32 spline output shafts for the SYE on both the 231 and24transfercases.
Like you pointed out what @mrblaine mentioned on another site, if the factory designed and engineered it, it might be in best interest to keep it or re utilize it. Like I have mentioned before, I am a huge fan of companion flanges over typical eared flanges both on output shafts and pinion shafts.