Dana 70

It depends on which Dana 70 it is. I have a 70-U and it has 3.5" axle tubes. It is under my rat truck, but staying dual wheel. There is the 70 HD that I think has the 4" tubes, but the 70-U is the same basic size and weight as the 60. Don't take a bunch of BS info. Go to the SOURCE.

Find the part number on your axle and enter it here:

The Expert Dana Holding Corporation Part Identification for Driveshafts, UJoints, Spicer, Dana, Drivelines

Just like the 60, there are SEVERAL different 70 axles, each with their own different characteristics. Most of them are NOT that big or heavy.