Originally posted by GreenMachine@Aug 20 2004, 12:12 AM
what does this mean? explain please.
Basically inside the tranny there's this big ass gear thingee...called a planetary gear set. Some have one like the Ford AOD others have two like the 4L60E and some have 3 like the Allison 1000!



Looks like that.

Anyway... with more pinions, it can distribute torque loads over more gears thus upping the torque capacity. Ford went from 4 pinion planets in the E4OD to 6 in the 4R100 when it was updated. The E4OD/4R100 is like the 4L80E.

But i read that in '02 GM went to 5 pinion planets in the 4L80E somewhere...that means they are stronger. But all '99+ 4L80E's have other improvments also.