Am having an ongoing problem with leaking rear axle seals on all three 60 pontiacs. The only axle bearings we we can get in New Zealand are MBS RW307ER. We can't get replacement seals for these bearings so have to buy a new bearing. Some of these seals are leaking after around 1000 miles.( have tried shortening the tension spring which helps for a while.) I believe the bearings used on the Canadian Pontiacs or Chevs is RW607NR with replacement seals available?. Is there an inner seal available that fits on the diff side of the bearing to keep the oil away from the bearing seal. Any help would be appreciated.
