Good luck finding the flares , I even went through bushwhacker , and you can't get them anymore for a 91 trooper.If you search my posts , you will find one where I bought some bushwhacker flares from a jeep application , and with a little modification , they do fit , and also give you more coverage then the ones made for the trooper , and were also a little bit cheaper then what they wanted.The hardest part was making them fit the back doors as the cut the jeep had was off by a couple inches , so you need to make another cut.

1996 Jeep Grand Cherokee 5.2 with mods.Hughes Air gap intake , 52MM TB , ford injectors, 2 3/4" lift, Doug Thorley headers , HID headlights with LED , HID fog lights , glow gauges , a few others