The way I got mine in was with a sledgehammer (a really big one) when that didn't work I bugged the Sh*t out of my friends until they gave me the finger and kicked out of their house and to stop bugging them, as this was happening they told me whose building the car me or them... And to figure it out on my own...just like they did. j.k
What you can also do is bolt up an older 350 trans and buy the special torque converter if you are willing to live without the o/d