"Dana didn't supply D-70's to dodge till 79, someone could have put one in it over time, whats the bom # on the dana"
But how can that be true when
even the 1977 FSM covers the Dana (then Spicer) 70 (see page 3-53 of the 1977 FSM)??
"The Dana 70 rear axle was first used in the Dodge W300 in 1958." - Wikipedia.
http://en.wikipedia.org/wiki/Dana_70
Perhaps you're reaching this conclusion because, prior to 1979, it was called the "Spicer 70" diff.??
