Re: 93 grand cherokee laredo-hard shake in the front end
Loose track bar is pretty common for this. Have someone work the steering wheel back and forth and look at all tie rod ends for play, or even play in the frame side track bar mount. Might want to look at the steering gear box also, as it may be loose/have broken. HTH.
1994 ZJ, 3.5", 33" Trxus MT, HP D30 4.56, XJ D44 4.56 w/Detroit
2004 WJ Ltd. Stock QuadraDrive 235 70R17 Cooper AT3