Herb,
I like the aluminium PG. Years ago I swapped a 283 with an aluminium PG into a Vega. I later swapped the PG for an TH350. The TH350 improved performance,but the mileage wasn't as good on the hiway. I think the extra rotating mass in the TH350 was the reason. All that rotates in the PG in high is the input shaft,the high gear
clutch hub and the output shaft.
I think if you drive alot at hiway speeds and are concerened about mileage the PG is a better choice. Just depends on how a person wants to use
their vehicle. My 2 cents.
6bngr261
