I just installed a 6in catvos lift on a outlander 1000 xmr and when you get on the gas and the back end squats it sounds like the axles are rubbing the shocks are maxed out and the mechanic that put it on wants to put heavier spring on to make it stiffer and I don’t want to do that unless I have to. Any help would be great and I have no clue on what to try to fix this. I hope someone can help.