Don't know if it is related to the Tokico... I put blue's on my 89 along with new poly SS bushing on the lower contol arms. I use Eibach lowering springs and Whiteline sway bars. Since I did this setup, I find my front "bounces" or rebounds with a jump much more over bumps or dips. I think it has to do with the Poli bushings which are not "bound" to the control arms like the stock rubber bushings were and I think this had removed some of the dampning in the suspension. But, like I mentioned, it is all a guess as I'm no expert, but very observent! :sarcasm: If it is the fault of the blue's, I wish I had opted for the more $$ Koni's to not have the rebound effect.