I'm running stock TJ springs on mine and the 24" shocks work fine. I removed my stock bump stop and drilled and taped the hole for TJ bump stops and on the bottom I used a 1/2" tall bump stop from energy suspenions made for lowerd Chevy a-arms to center the bottom of the spring. I can't rember the part# but I could find it if you need it. To get the TJ bump stops I just went to the Jeep forum here on the wire and asked if anybody had some to sale. If you need any advice putting it together just e-mail me and I will be glad to help.
Dennis

95 Sportage, gone but not forgotten.
98 Jeep TJ, 4" Zone springs with RC Long arms, Ford 8.8", 4.56 gears & Detroit locker rear, D30, 4.56 & Detroit Trutrack front.