Stall Convertor Need Help

well, dipping into my [lack of ] knowledge on this,

- its "high stall torque converter"
-they have a different "lockup" point than the stock items and have a higher load rating [ stronger and they engage differently ]
-i beleive its akin to putting in a heavy duty clutch to a manual
-yes the transmission would have to be removed for installiation
-combined with the shift kit the idea is an even harder engagement which equals more power on tap and faster access to it

as for diff ratio, 3.73 is shorter than stock isnt it? if so then the tranny work would get more out of it and you'll have yourself a more power to the ground package.

**please note, i dont know much about high stall torque converters so please take my advice with a pinch of salt, unless someone agrees / corrects me**

 

basically a hi-stall converter allows you to "drop the clutch" (so to speak), but in an auto....you stall up the engine to the right rpm for the converter, lets say 2500rpm, by holding the brakes and accelerator at the same time.
when you release the brakes the converter will engage and allow all torque to be put to the wheels instantly, great for burnouts and lightning fast take-offs.
as you would expect hi-stallies create more heat (than stock converters), so another trans-cooler is definately needed.
its not cheap to get a stallie, and there are both good and bad points with them, have a talk to a pro (trans specialist) about them and see what they would recommend for what you want to acheive, and how it will affect your driving.