I have an '06 LJ Rubi with at least a 2.5 spring lift and a TT and no drive shaft was needed. The LJ has a lot longer drive shaft and the Rubicon version has an even longer shaft. I would like to one day upgrade to Rokmen control arms as the stock units are made of sheet metal. If I do go to adjustable control arms like the Rokmen short arms, then I would install a dual cardan shaft so I can rotate the rear axle pinion up away from the trail a little.
Can't go wrong with the OME springs. I suggest you get the ZJ front and LJ rear springs. The ZJ springs are happier with the winch. I don't have them and regret the mistake. One day I will replace the OME HD springs I have with ZJ/LJ.
A new skid is a must on an LJ. That belly hangs down pretty bad.
The 285's should not require a spacer.
2006 Solar Yellow Rubicon Unlimited
Jeep Club Member #1340
6 Speed, Hardtop
Mods done: Hurst tee handle, cheap hand throttle, Rokmen Merc front bumper, Warn 9.5 TI winch with 3/8" X 100 worth of Viking yellow rope, DPG OME Ultimate with JKS ACOS up front, Kilby Gas Tank Skid, Kilby Steering Box Skid, Jeep Medic Belly Up, Skidrow Engine Skid, Rockcrusher Diff Skid in the rear, Warn Diff cover in front, , AR Outlaw II's and MTR 12:50/15's, Homemade rear Bumper, Cheap Cobra CB, Puma OBA, Sirius Radio, Locker Defeat, Rockhard cage, Rockmen short corners, homemade tire swing/tailgate hinge affair, Airlift air bags on the rear- - - - - - and more to come!