First trans/primary lube change on my wifes new sporty and I can not get the quad ring gasket to fit in the primary cover groove. On my ultra it fits in the derby cover but on this sporty it fits into the primary cover. Is there a trick to this, Ive tried pushing but seems groove is not deep enough to retain the gasket ring. I have not allowed the engine to cool yet and will continue to struggle all night if need be as we have a trip planned tomorrow morning. I dont know about other XL's but this design has me stumped. Any body help please?