[THEFERMANATOR]

They are UNIBODY construction on the newer wagons. The COMANCHE pickup was a UNICAB with integrated frame rails. If you think there is problems with the unibody, RUN!!! It is not a pretty site(or safe one) when the UNIBODY breaks apart, I've got a 97 that broke the UNIBODY under the passenger seat and rear frame rail at the hitch. The floors for the most part were OK, but if anything was ever spilled in the floorboard it will get trapped between the carpet and pan causing rot(my 88 has a rotted out rear pan over the tank).

The 4 cylinders were OK, but you won't be setting any speed records. And if you might tow, go with the 6. Another thing to consider is in the CHEROKEE's the transmission. The 4 cylinder's will be mostly 5 speeds which were pretty reliable, but will not hold up to any bigger tire. And the 4 cylinder auto's are DOG'S!!! The 3 speed auto's were sorry too. The 6 cylinder auto's have the very robust TOYOTA tranny, and the manuals were pretty solid to(also a TOYOTA design up till 00).

The viscous coupler doesn't always meen AWD. My 88 has a FULL/PART time 4WD, and uses a viscous coupler. But you have the option of 2WD. In the GRANDS with the 249/247 T-case, they are a full time unit. But many times a viscous is said to be bad when it needs nothing more than some posi-trac lube added to the transfer case fluid. If you have any specific questions, I'm more than happy to answer em for ya.