Originally Posted by
4DR4LIFE
ok i have an s20 trans off of my d15 and pulled it apart replaced the main input shaft bearing and the main shaft top bearing put it all back together and the input shaft cant be turned by hand i have dealt with a lot of rear wheel drive trany's but this is my first front so just wondering if anyone knows a common reason why the trans would lock up after its all back togeather thanks
You probably didn't get the shift forks lined up properly when you dropped the shafts back in. Basically the transmission is trying to be in two gears at the same time and that will cause it to lock up. It's really hard to take a picture of but this is the spot you should be looking at.