Welcome to the Jeep Forum. Tons of stuff here for you CJ7.
Stock shackles for your CJ7 where approximately 3 inches center to center from the factory.
I would double check to ensure you don't have something else going on, if the shackles all measure the same. Does your CJ actually look as though the back is higher than the front? Depending on where your are measuring there would be a difference between the front and back fenders.
Again.......Welcome to the CJ family.
'86 CJ7, 258, Carter BBD, Nutter'ed, TeamRush'ed, T-18, Twin Sticked Dana 300, D30 Frt-Pwr Lok L/S-4.10, AMC 20 Rear-Mosers-Detroit Locker-4.10, 2.5 BDS Lift, 1" Body Lift, 33" Wild Country M/Ts, Black Spoke wheels
'45 CJ2A, L134 Go Devil, T-90 Tranny, Warn O/D, T-18 T-Case, Dana 25 Frt, Dana 41 Rear, 531st CJ made
My 401 build: [url]http://www.jeepforum.com/forum/f8/trapshooters-401-build-1338277/[/url]