Which would be the correct way to install?

[PoconoCub]

I am replacing the inside axle seals on the finals

and I have run into a dilemma as to which way the new type seal should be installed.

Normally you would have the outside or the flat edge facing out and the axle would slide in the beveled side of the seal and if installed this way it would not.

So I was thinking I should install it reversed

So when I slide the axle into the final it would slide into the beveled side like it should, what are your thoughts?

[Slim140]

The side with writing (National) goes on the side you can see when installed. It will be facing outward depending on which side of the housing your on. This photo of yours goes toward the inside of the final where the oil is. If you smear a little grease on the rubber part it will help your shaft slide in easier.

[PoconoCub]

The side with writing (National) goes on the side you can see when installed. It will be facing outward depending on which side of the housing your on. This photo of yours goes toward the inside of the final where the oil is. If you smear a little grease on the rubber part it will help your shaft slide in easier.

I always lube up seals before inserting the shaft (that sounds dirty), although it goes against everything I have ever done as a mechanic for over 40 years I will install them the way you say. Thanks.

[Jim Becker]

The relevant question is not which way things are assembled, it is where the liquid is that you are keeping on one side of the seal.

Usually, this means putting the primary sealing lip towards the oil inside the housing.

[Glen]

Hi,
The original oil seals on the 1950's Cubs had a difference appearance than modern seals, you can see in the pic below.
The new seal has to be installed with the flat side, and the number, facing the brake drum. The seal lip has to be facing towards the oil that the seal is stopping from running out of the gear case, like Jim said above.