Which battery relocation kits are you guys using and what is a good rear drag spring? I have coilovers in the front with BBK lowering springs in the back. Even with a MT 15" drag radial I still can't get very good traction with the current suspension setup. I have KYB base shocks and struts and I'm switching them out for lakewood 70/30 fronts and 50/50 rears. I just need to move the battery to the back and find a better spring for the back too. You guys have any ideas?