To add some boing in our front end, we are going to use a set of ZJ coils from Old Man Emu (PN 2934). These have a slightly higher spring rate and static height than Old Man Emu’s 2-inch TJ springs. This should help deal with the heavier engine, axle, and large tires on our Willys. Out back, we are going to use Old Man Emu’s 2-inch lift coils intended for an LJ (PN 2949). These springs also have a higher spring rate than the regular 2-inch lift OME TJ coils and a similar static height. If the springs don’t provide enough lift or it’s not level, we can always add coil spacers.