I'm looking at a new NV2500 and the 4.0 engine has a 5 speed and the 5.6 has a 7 speed. I've had a 4.0 before but can get a good deal on a 5.6 now. Any pros or cons with the 7 speed? I had 2 4.0/5speed vans before and we ran about 350,000 miles total with no t... Login to read more.