The seal sits inside the axle tube so swivel oil can get to flange and leak if gasket failed / nuts loose
if seal has gone or the seal land on half shaft worn then oil will pass from axle towards flange and swivel
The seal sits inside the axle tube so swivel oil can get to flange and leak if gasket failed / nuts loose
if seal has gone or the seal land on half shaft worn then oil will pass from axle towards flange and swivel