Need help looking to get a new set of shocks for my 02 Frontier 4x4. I'm choosing between the KYB GR2 or the gas a just shocks. Is there a big difference between the two of these shocks? I mainly drive highway and city streets no off-road. I'm just looking to get a shock like stock or a little better. The gas a just shocks are about $20 more on rockauto, and seem to be a better shock. Is it worth spending the extra money for the gas a just for normal driving?