Originally Posted by MMZ_TimeLord
Seems
this article says that two piece designs are heavier, louder and cause more vibration, but don't say why they are used except that the diameter of the shaft is smaller and can't be one piece.
This article is pretty good. It pretty much says that if your [drive] shaft (
) is 51" or longer you should be looking at a 2 piece. Anyone put a measure on theirs?