When you installed the trans, did it go right up to the engine on the dowel pins without having to pull it up with the bolts? Once bolted up, the torque converter should have been easy to turn by hand to line it up. If not, it is possible that the pump is broken. (Done that too one time)
Also possible that the low clutch seal is bad. Could have cut it while installing it.
Check the fluid level before starting the engine and see how far up on the stick it is, then start the engine and see if the level drops. If it doesn't drop, then something is wrong in the pump. After sitting a few hours, the level should read a good bit overfull on the stick, once running the pump should pull it down to the correct mark if it is working. Also, to get an accurate reading on fluid level the trans needs to be at operating temp, but you can get close when cold.
Beginnning to sound like it isn't developing any line pressure, and the front pump would be the next suspect providing everything else checked out.
Last edited by Roy Rodgers; 04/10/2009 12:33 PM.
