Transmission swap Fit my truck?

I think a 2003 Ram transmission is a 45RFE full electric and 1999 is a 46RH and it uses bands and electronic gov. You need to see if the engine in the 2003 is a 5.2 or a 5.9. If not it wont. The transmission wont even bolt up to the 4.7 or the 5.7 that are normally used in the 2003 1500's.