rear wheel transmission for 4.9 liter front wheel

I have a 95 Deville 4.9 liter engine, which of course is front wheel drive.  I am trying to find out if there are any rear wheel drive caddy transmissions with the same bolt pattern, or if anyone makes an adapter.  I am trying to do a conversion in to a 63 Chevy pickup.  

I know of a 64 Impala SS powered by a 4.6 Turbo Northstar with a 700R4, owner said it bolted right up. Might work for yours too.