I just started to wonder the same thing, as I have a 92 rodeo with the DOR shackles in the rear and was wondering what size RS 9000X i should go with. I was thinking that with the longer shackles, longer rear shocks would be needed. But I couldnt find anything on the search feature.

92 Rodeo, 3.1 TB crank, custom bumpstop spacers, DOR shackles, Flipped ball joints, D44 Rear, 4.56s and new magnaflow cat and dynomax ultraflow muffler Since been replaced by a 2 door Explorer on 31's shackles, cranked torsion bars and full exhaust