Thanks for that info Matt. And thanks for everyone for clarifying. I feel a lot better now that buying the V6 housing wasn't for nothing.
I guess I misunderstood my friend when he said that the V6 axle was stronger...now I know it's the third member, not the whole axle. I'll be ordering the V6 third member from Marlin soon.
Correct me if I'm wrong, so...I see now a lot of people go with the V6 third member to swap into where the 4cyl version used to be, but the housing has to be grinded for the V6 version to fit in there. So that means for me, I don't have to do any grinding to make it fit...since I have the V6 housing. (I know I'm really beating a dead horse about this, but like I said in the first post, I don't feel completely comfortable spending $1600 and not getting all the details ironed out)