I was over at Advanced looking around. No adapter to B.O.P. They got a BOP to sm420/465. They got an adapter for nv3500/4500 for just about everything.
I thought I read the bells were part of the tranny on some of the nv4500's . Do you know if there is one that has a removable bell? then I could just swap bells and get matching 10 spline etc. What size clutch does it usually come with? I am running an 11".

While I am here I am kinda stuck at mounting my tranny.
The sm420 used to mount using the bell. My bell is aluminum and does not feel right sitting in between 2 massive pieces of iron.
I would like to support the tranny. I am thinking about a mount that comes from the stock mount and goes back a lil to mount to the rear of the mounting holes to the bell on the tranny. The 2 lower holes with the nice flat tabs on them. I am using a divorced transfer case so I cant use the adapter mount. Is there another mounting option I do not know of? Should i make a new post about this problem?