My tranny is toast and a new FLT 5 is on the way. I like everything about the stock converter that's in there now. The motor makes about 420 rwhp. I don't beat on it too much, but just wondering how much longer the stock converter will last. Would you change it now while everything is apart or just leave as is? Do the stock converters hold up under this much power? I have 285/20's on the back and don't have any plans for more rubber. If I do change it, I don't want to do anything that would adversely affect fuel eco. Something with a similar stall speed, just more able to handle the power. Your thoughts appreciated.

 

The stock converters are tough. Unless your goal its to pick up possibly a few tenths I would run the stocker. My truck is down right now, possibly due to an after market TC. Even "Good" after market converters break and I'm seriously considering putting the stocker back in.

 

I would stick with stock converter.I have yank 2600 and have no traction.I will be going back to stock when tranny lets go.

 

my stock converters clutch went out on mine... not sure why.
ive gone through a few aftermarket converters too...