I put in a new flex plate, billet input, goerend converter and valve body. The truck wont shift into 2nd, 3rd or 4th. Sometimes it shifts into 2nd, but the motor just revs up and dosent really move. fluid level is correct and I made sure the the front band is correct. Its fine in reverse and in first. Thanks for any info.

 

You're gonna have to call Dave on that. I had to install a line press. gauge to watch, it's has to do with the vb.

 

I'll be installing a perminate gauge today. Went and bought a 0-200psi. mech. oil press. gauge. The line press. should be hitting around 105-110 when shifting to 2nd.

Read my thread 'trans not shift-ats' and see if we have the same prob. Right now mine's shifting fine.???