after i put the new motor in in it would work for 2 miles then start slipping I adjust it many time and after i got it back from the nissan dealer thats when i was able to drive it.Before i took it to the dealer, sometimes it would go i gear buy after the ajusted it thats when i was able to drive it untill the car got warmed up. I found one other person on some wed site that he z was doing the same think and one person posted that they might of put the wrong cluch in or a part of the cluch was on the wrong way thanks