Can anybody think of anything i could have done wrong? reverse works perfect i know i didnt tare a seal i just am puzzled about this.

 

There are so many possibles it isn't easy.
did you disassemble the VB? Are all the check ***** in and in the right places?
Did the rear clutch get put together correct?
Are you planning on doing a pressure check?

 

it has a goearand valve body and tc that was in it before i broke my input shaft. i didn't mess with vb. i just pulled the clutches apart and put new steels and clutches in. but i put the one piece input in so on that piston i put new seals in i dont understand what i did.

 

Look at your failed input shaft and note there are three sealing rings (one larger and on rear retainer)on it. Did you put three on yours??

 

did ya make sure its fulo? will show full on stick, then ya run it and fill up the converter/ passages..... check er in neutral to be sure.

 

yea i'm not sure what's going on today i pulled it out of the garage and it worked perfect again didn't have time to mess with it or take it for a test drive but it was holding solid in the drive way as in spun the tires on wet concrete before it didnt even move so i will mess around with it 2mro ill let ya know whats going on !

 

Pressure test it.