Is that new rust showing on the leaf springs in the pic? That would be a sign of the u-bolts being loose, and would give you squirrely steering.
I also see that it still has a track bar attached, but it doesn't have a sway bar on it. Some of the lifted YJ's need a sway bar or they are a bear to drive at higher speeds.
'87 YJ, 4.2L built and bored, 8.5" of lift, 8.8 rear, AX15/NP 231, Tom Woods drive shafts, Flat fenders, 12,000LB winch, Custom bumpers, Rattle can paint job. Never completed...