Mike McCullough (sp?) down in Tampa had one. It was a hassle, with BH adapter, special clutch disc, T-case adapter, modded X-member, modded d-shafts... I rode in the truck, it seemed to do OK with the broad ratios 'cause it had a torquey 2F in it.
That was right about the time we all figured out the H55 was readily available and a bolt-in. Oops.
I did this conversion. The compound low is sweet, but the install was a PITA. The trans is noisy too. The 2F died a year later and I moved up to a ramjet 350. If you intent on staying with the yota motor I would go H55. For a v-8 conversion the nv4500 works well. Both are way way better than the 4-speed.
The reason I ask is because I have an vn4500 in my 40 and I will eventually be puting a big diesel in the 60 and in the mean time I would like to have an od. The nv4500 will be in the 60 at some point, along with the diesel, I just thought that I might as well put it in now.
I will be puting a toyota trans in the 40.
If I didn't have the nv4500 already I wouldn't go out and buy one but I have one so...