I have posted in the razr forum but no reply. i just bought a 2010 razr s with 50 hours on it. I have noticed that the front wheels dont engage instantly when i use the 4 wheel drive button. It engages instantly when i use reverse just not forward. the rear wheel almost make 1 1/2 revolutions before the front wheels engage. any advice would be great i do not want to pay the rates of a dealer to diagnose. thanks . i had an 09 regular razr and the 4 wheel drive worked excellant. i am just not sure what this problem could be