i dont get why people waste there time on standard diffs to be honnest there rubbish they dont lock both wheels very well and there so easy to brake something like a gripper or a quaife will give so much better traction when mine had 350 with coilovers and road legal slicks it smashed the plannet and sun gears to bits!and with 500 i took all the teeth off the crown wheel and pinion just comeing off a rounderbout hard in 2nd!