You can get poly bushings for the knucles trailing arm connection, for the rear forward controle arm the bushing is stiff enough to really not benifit much from poly. I was intending to do poly for the forward conrole arm untill i saw how good the stock bushing is in that location.

99 SE V6\5spd - 156 HP\157 TQ 15.166-90.84 Totaled 02/12/06 99 SVT # 1571 - 175 HP\153 TQ 14.999-91.88 Born 3/24/99 Reborn 3/18/06 Pietenpol Racing Technologies project vehicle 90 Festiva L 5spd, Blue(not for long), 103k