[willis78]

The seal with the lip looks like one that would go on the rear brake cover? What model is this?

 

[willis78]

I did one of these a couple months ago. Got a used case on ebay for customer and replaced seals. I don't think the left side had the extended dust lip on it. When you say 2mm difference, does it no want to fit right in the case? If it sits in the rear end where it should and on the axle itself I wouldnt worry. My 2cents.

 

[willis78]

I wish I could remember for sure... but usually the only time the seals i've seen that have the outer raised lip will sit against something. Sorry I cant help.