If your doing an overdrive swap might as well get teh 47rh so you can have lock up also.

For what it is worth my 727 with Goerend Converter is 100x better then stock.

Now that I have a "semi" built transmission installed, I have an extra one. But, I'm in Wyoming, and it's a Jasper transmission. It lasted me almost a year, and I never had any problems with it.