i have a 04.5 w/ the 48RE auto. i was wondering about the tow/haul mode. what does that change? shift points? torque converter lock-up?  i'm know that tow/haul mode locks out OD.   THANKS!

thank-you! folks,..i'm pondering this info. 

i sold my 98.5 ram so when the check clears i'll dig into my 48RE!!

My 05 does not have a flash I wired in a OD lock out switch with a relay. Works great!