1990 Jeep Wagoneer changing engine mounts

Hello,

we are changing all mounts on a 1990 wagoneer V8 360, only to find out that the engine ones cannot be remove using a regular tools, I am talking about the bolts on the engine side. Is there a trick to be able to have these bolts removed or does it really need a special key/range/tool?

Maybe someone can point the direction to some instructions on that removal

Thnx

Claude