after reading more in here.. i've run out to my truck and saw the axle code to be 45 which is the 5R55S/3.55. [i've got a 4.0 BTW] will i be OK for my trip O/D on? its one way with the boat. I dont want to have a "catastrophic" on the way down... i'm not towing over 3000#s... so.. what do you...