2006 Toyota Tundra drivetrain & axles problems

Tamara recall - I was exiting the freeway, making a left hand turn onto the city street, I was traveling approximately 25 miles per hour. As I entered the intersection, on a green light, a 1996 GMC yukon ran a red light, travelling approximately 40 miles an hour and hit me on my front end, damaging the bumper, fender, door, hood and bed on the drivers side.

Driving on the highway at normal speed of 65 MPH; suddenly I noticed an increase in rpm's and a pull of the truck, kind of pulling back and forth. I then noticed the o/d light on, I wiggled the transmission shifter while driving and the o/d light went away; the truck rpm's returned to normal for the speed I was driving. Since then, it has happened every day at any given time; what I am doing is the same or just pressing the push button until the light goes away.