1993 Chevy k3500 480le trans problem?

[LucasA]

one day my trans down shifted in two second and it stays in second now and it started pouring out trans fluid so i had all gaskets, new fluid filters, torque converter, bushing, pump, and shift solenoids changed and it still wont shift out of second and i have to keep reeving it a little to get it to start moving but it goes in reverse perfectly fine... What could be the problem?

 

[bajakma]

Have you checked your actuator? was there any signs of a broken clip inside the trans? Were there any metal shavings on there on the pan magnet? sounds like the fluid pressure is not building up properly. Bad sun gear, could be allot of things. not really enough info here.