727 [ Planetary Info ] Needed

I agree with Bob. Probably not a sure fire 100% way without a tear down. I will say this though. I think people kinda get hung up on stuff like this. I have a friend with a 5300 pound Grand Fury wagon that runs 12.80s and 8.40s in the 1/4 and 1/8 respectively. He runs 3 pinion planets.