Straight answer..No..they are indeed a different diameter coil. The JK uses much larger diameter for there coils. Sorry bud...had a buddy pick a JK bb up for cheap hoping it would work on his TJ..well story short...it didn't.
At the top of the TJ Section there is a "STICKY" for TJ Lift Reviews. Read over that thread there are several different lifts from 2'' to 3'' reviewed. Do ALOT of homework before you purchase any lift.
I personally would recommend either a simple 2'' budget boost or a OME suspension lift.