Wheel Bearing Spacer (Seal Carrier), Rear Outer, '68 & Earlier
This is the spacer that installs between the rear brake drum and the wheel bearing on all swing axle Type 1 & 3's, and '63 & earlier Type 2's. The rear oil seal rides on this spacer and the o-ring sits in the groove of it. If worn or pitted, it can cause leaks.