Originally Posted by Merkava
I keep reading the only difference between QT2 and QD2 is the rear differential.
1. Is there no way to get QD2 without Quadra lift?
2. Do QD2 and QT2 have exactly the same front differential?
3. Am I right about the assumptions I made about the Truetrac and braking?
Thanks for your help.
2 yes as well as identical transfer cases
3 can you get a truetrac for the rear of the new WK2? It is a mercedes housing. You may have better luck scavenging the salvage yard for an 2011-2012 ELSD rear end and update the traction computer. It would perform better but at what $$$.
All WK2s have brake traction control, effective for slippery roads but it does rob some power and can be hard on the brakes (the brakes make heat). A limited slip or equivalent would get more power to the the wheel with traction. The QT II transfer case can supply 80-90% engine power automatically to the axle that has traction, near 100% when in 4 low. A limited slip or truetrac would provide about 80-90% of that to the rear wheel with traction where brake traction is about 50%. So if all the wheel are off the ground (or little traction) except one rear then you will get 65-80% of your engine power to the ground with a limited slip rear and 40-45% without.
There are other advantages and disadvantages to each system but they kind of wash out in comparison, and depend a lot on what kind of trail or ice riding you are doing..