92 XJ, with 231 tc, 4" of lift, no tc drop or shims. I know/understand that a SYE is the correct way to fix any driveline problems, but currently it is not an option. Under hard braking, or small humps (where driveline is moving out of it's normal position) there is a nasty chattering/grinding sound coming from the rear. No ujoints have been installed since the lift (hopefully this week), but it definitely doesn't sound like them (not humming). What would cause this? There is only 3/4" to an 1" more yoke out of the tcase than stock, so spline contact I do not believe is the problem (not sure). Is there anyway that the ujoint straps or something is making contact somewhere?