Two problems related to brake disc have been reported for the 1998 Jeep Wrangler. The most recently reported issues are listed below.
The rear brakes provide no stopping assistance. When you back up on any surface and apply the brakes the front brakes [disc] lock up and the back wheels just keep rolling. They provide no stopping assistance at all.
When brakes are applied, the front brakes lock up, but the rear wheels continue to turn, which is extremely hazardous during slippery conditions. Dealer has tried to correct problem by replacing drums and valve, but that did not cure the problem. They have now ordered a new master cylinder. We are hoping that the master cylinder cures the problem, but are concerned that other people may not realize that there rear brakes are not functioning properly.