Weight of 7 1/4 vs 8 1/4 vs 8 3/4 vs Dana 60?

inkjunkie said
I can say that the Dana 60 is a heavy *** piece of iron.....

been told by a well known superstock racer that there is 35lbs. diff. between the dana 60 and an 8 3/4; like me, he started blowing 8 3/4`s and had to go to a dana to stop it. -------------------bob