There are disc brakes front and back on the Cherokee.
EDIT:
Cherokees (XJ) have Drum Brakes in the back.
Disc in the front
i don't know if you were referring to the new Grand Cherokees ..
Those have All Disc.
Hope it helps.
(i own a 88 Cherokee XJ)
The 2014 Jeep Cherokee has 49.9 in. of rear hip room.
The 2014 Jeep Cherokee has 40.3 in. of rear leg room.
The 2001 Jeep Cherokee has 38 in. of rear head room.
The 2001 Jeep Cherokee has 35 in. of rear leg room.
The 2014 Jeep Cherokee has 55.1 in. of rear shoulder room.
The 2001 Jeep Cherokee has 44.3 in. of rear hip room.
The 2001 Jeep Cherokee has 54.1 in. of rear shoulder room.
The 2014 Jeep Cherokee has 38.5 in. of rear head room.
The rear track of the 2014 Jeep Cherokee is 5 ft. 1.9 in. (61.9 in.).
A 2000 Jeep Cherokee would have rear drum brakes.
The 2008 Jeep Grand-Cherokee has 58.4 in. of rear shoulder room.
The 2006 Jeep Grand-Cherokee has 35.5 in. of rear leg room.