front driveshaft rubbing exhaust

I have a 89 xj with a 4.0l ,with a 4" suspension lift. When in 2wd going around sharp rh corners my front driveshaft hits the exhaust makes a terrible noise. If I go underneath the truck there is almost 2 1/4 inchesd of clearance. I doens't do it all all in 4wd offroad. All my exhaust hangars are fine. I bought the truck stock and put a motor,lift in in before I ever drove it,so I don'y know what caused this.! Thanks!

Busted motor mounts can allow your engine to move enough to allow contact between the exhaust down pipe and the front drive shaft.

do you have ajustable LCA/UCA? or stock ones?