I Am New To Dodge As I Recently Purchased A 2005 3500 Qc Cummins With Auto Tranny (48re) And Am A Little Confused About Something. I See A Lot Of Posts About Od Lockout And I Was Just Wondering If That Was An Option With Some Trucks. I Have The Tow Haul Mode But Don't Know If Thats What It Is. My Chevy Duramax Had An Od Lockout Button And A Tow Haul Mode. Sorry For The Inexperience But If I Do Have A Od Lockout Would Love To Know How To Use It. Thanks Guys

 

no od lock out,i miss mine to

 

I have OD lockout but no tow/haul mode...

 

04 and before had OD lockout only, 05 has tow haul , which raises shift points , 06 has both , like the allison.