Re: "MR" "R" drives Mercruiser...What is the difference
R drive. Pre-load on the drive-shaft pin with spring. Mr drive Bearing on drive shaft held with retainer and tapper bearing. Bearing held with retainer is much stronger than a spring on the top of the drive shaft.
Re: "MR" "R" drives Mercruiser...What is the difference
I am not sure I follow you Vinney. Sometimes you have to talk to me like I am a child.<br /><br />What years did they make the "R" drive and a little more info would be great.<br /><br />thanks,