Are they the same, just a different #? If not, what are the differences?

 

46LE i think are the automatic trannies from fourth gens..

 

The 700R-4 was later renamed as the 4L60. They are both the same transmission. However, the 4L60-E is different. It is fully electronic and controlled by a Powertrain Control Module, hence the addition of the "E" on the end. Same internals as the 700, just now its controlled by a PCM instead of a governer and TV Cable.

 

Thanks!