All,
Here is a response from AOR on a 3RZ to R151 bellhousing:
" We did build one for our Toyota 7s Racer, but we really haven't thought
much about offering them for sale. We have about 500.00 invested in this
one bellhousing, which includes us having it shipped in from a yard in CA,
and the time we had to pay for our local machine shop building it. The cost
would go down if we had a few orders for this part at one time."
I asked them to also consider building one for the 7M to R151.
Send your me toos, and I will send it back to AOR.