Transmission Help

[Roger Rios]

So i have a 1975 280z 2+2 i cant shift into any gear what so ever when the car is on but when the car is off i can shift gears perfectly, could someone help me with this I've already replaced the salve and master clutch cylinder.

[Zed Head]

Did you bleed the system after you installed the new parts?  You have to get the air out.

 

Also, tell a little bit about the car.  Was it working fine, then stopped?  Did you take it apart for some other reason, like a new clutch?  Has it been sitting for 20 years and you're just trying to get it running?  Did you just do a transmission swap?

 

Each of these can have a different solution.  Need details.