I have a '05. The stock trans got a soft rebuild at just under 70k (front pump, converter, misc parts). Since the warranty was almost up, the dealer was willing to put in after market parts for me. I purchased a BD converter, valve body and their OD lock out kit. That trans made it to 375k always ran cool, towed all over WA, ID, MT. The converter was a little lower stall speed than stock, it made a big difference when towing. During covid the tranny finally started to go, BD didn't have anything for parts/transmissions so I had a local shop build HD towing trans with all the options. I sure miss that BD converter....