ELECMAN

I started to hear a noise under the car.went to my mechanic he checked under the car sarting with the front End Universal joints Drive shaft they are fine.The only time it makes the noises or friction noises is when im making a turn from a stop point or at very low speed meaning under 5 miles a hour I have a posi rear the mechanic said that it might be normal the tranny shifts fine but when it goes into second theres a hard push into second almost if somebody bumped you from behind.In puts would help I have a 455 with a th400 tranny thanks.