we have a gmc with the allison trans. love it. we had a 99 dodge diesel and got rid of it to buy the 03 gm. when dh said he wanted to get the gmc, i was wondering why. we went to the dealer to test drive and yeah, i liked the shifting and how the tranie worked to help slow it down.
the gm is also much better than our dodge was going through the mountains. we also added the edge to both our mh and the truck. we upgrade vehicles pretty often but, this one we will be holding on to.