reverse doesn't work in 904

Hi,

so i finally got my rebuilt 318 running last night. This morning we pulled it outside to run it for half an hour and break the cam in. I had put about 3 quarts of ATF in the tranny.

The tranny is a remanufactured 904 with about 300 miles on it. I had Ammco install a TF-1 shift kit in it. When i went to back the car back into the garage, it didn't move very fast in reverse. I wasn't sure if it was just the 3200 stall converter, so i gave it some gas, went up to 4,000 for a second. Then i pulled it forward and put more ATF in, so that it was full on the dipstick. After that, i could not get it to go in reveres. forward works, but reverse did not.

I thoght maybe the shifting linkage was messed up, so i disconnected the linkage and put it into reverese on the transmission. when we started the car it jumped forward a little bit, and then would not move in either direction.

is it possible that i burnt something up when i tried to back up with 3 quarts of ATF?

any other ideas of what could be wrong?

Thank you,

Steve