halfshaft oil seal

[HAPPY1]

Greetings Transit Oracles
Mk1 c.i autohome 2000cc v4 1976 drums all round
dreaded mot has reared its ugly head,
n/s/r halfshaft seal has leaked over shoes etc,any idea if seal is readily available?Small patch reqs welding&exhaust mount broken,not bad for 33,wish i could say the same!
Any info would be most helpful,please,are all twin axle seals inter-changeable?

[Southerner]

Mk3 ones fit the SWB, 5 stud, but not sure for yours (6 stud?). Ford dealer still has them - the Mk3 seals are cork rings as opposed to the gasket type for the mk1 but they do the job just fine. Maybe someone else can comment about a twin wheel half shaft? Cheers, Andy