1973 GMC C6000 Rear axle spindle nut (gm part no 473636) 6pt lug 3 1/2" socket tool source needed. This not the hex head socket. the nut is older style with slots going from the OD 3 3/4" to the 3". The ID is 2 1/2". On newer nuts the slots o from the OD to the ID. Any help much appreciated. jimk