It's actually QT-I; QuadraTrac.

QT-I is very capable....

Too much for the 3.7L QT-1 combo will probably be a long day of wheeling where a lot of steep/long climbs are involved. That's a lot of heavy lifting for the 3.7L without a low range in the t-case to take some load off. Some guys have been eying up a t-case swap to give them that capability.