Once we got the JK box installed we raised the stock TJ pillow block and shortened the stock TJ steering shaft. We attached it to the JK box using a 3⁄4-inch DD Borgeson steering U-joint (PN U16N-7DDx7DD) from Parts Mike. This allowed us to trim the back of the grille a little and mock up the new location for the grille, radiator, and A/C condenser about 41⁄2 inches farther back on the framerails than stock. Yep, our little TJ has A/C and in the deserts of Arizona we are keeping it. If we would have dropped the A/C, we could have pushed the grille and radiator back a touch more.