Well Hemiman, I can't help you much on the NV4500. All I know is from this article about the swap:
http://www.off-road.com/jeep/reviews/yj1-nv45001.htm Looks like you may have to ask that question on a Jeep forum. However, I should point out that you'll need an input shaft as close to 8" long as you can. That's to work with the Colorado bell and adapter plate together. I found some info here:
http://www.high-impact.net/transmission_and_gear/nv4500.htm As for the bolt pattern matching the 60 degree GM one... let's put that myth to rest.
On the left, Canyon bell. On the right, 60 degree 2.2L S10 bell. Close, but no cigar...
Greg
