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Posted by Tridentman on 5/11/2008, 7:51 pm, in reply to "Re: Chain sprocket O ring?????"
71.187.143.97
Certainly the groove is there on my 1974 T120RV.
At the stage that you are at I would certainly take off the sprocket nut etc and see if the groove is there. If it is---then use the 'O' ring. If not then put sealant on as Les suggests.
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