Hello everyone, I just finished a comprehensive 24 hour test drive of a GMC 2500 Dmax/Allison and a QC 2500 Cummins/48re in my quest for a new pickup.
I took them both “over the hill” our local steep section outside of Boise, towing a 6500lb boat. In all fairness the Dmax accelerated well, stopped well, and the grade braking kept the truck and boat at 58mph going down the grade. It went up the hill at about 56mph with my foot buried.
The CTD accelerated well, though I could not complete the acceleration test because at 1800rpm, the tires broke loose in a cloud of blue smoke, WITH THE BOAT HOOKED UP.
Anyway, over the hill, I went, and with OD off, the CTD went down the hill at 58mph, the same as the Dmax! We came up the hill at 58mph, slightly faster than the Dmax.
Overall, the Chevy has a softer front end, heavier steering, and a harsher ride at the rear. Allison shifts smooth, but can do strange things in certain situations. The Dmax motor has clatter when pulling, and seems more like a hopped up gas engine.
The CTD has an overall firmer ride, but never harsh. The motor is quieter throughout the rpm range, and seems to like to grunt. I really like the quick steering and the cab is quiet. Even a die hard Chevy friend of mine cannot believe how solid the cab and doors are.
I have been following the forums of all the trucks the past 4-5 months. It is obvious that the CTD people are nuts about their trucks and now I know why.
I guess by now ya'll know what place the CTD came in!!!!!!
Four days and 615 miles of grinning in my CTD.
