I know its been discussed before just looking for a little more insight. 315s are almost shot and its time for tires. Up until now I've gotten by with stock gears. Financially I can't cover new tires, gears and lockers so leaning to tires and rims first. I have a non-locked 80. I have a spartan auto locker in the rear but would like to go harrop front and rear once I regear to 488s. Any insight or suggestions is very appreciated. TIA