Well I just finished reading the HD bulletin m1304, and yes I just became an owner of the dreaded transmission rattle with an 2012 bagger. Well I changed out the transmission lube with Bel-ray, it quieted down some, but not much. My question is, Does anyone who has a rattling tranny, with a whole pile of miles, does it get quieter after a bunch of miles or does always sound like that forever, or what did you do to get rid of the racket.
Thanks in advance Jonnierock

 

Will be watching to see what type of responses you get....I only have 5k on the bike but had Shockproof put in at 1k service and didn't make difference...still rattles pretty good...I was next to a 2011 SG in toll traffic Saturday and was amazed at how noisy it was

 

where can i find the bulletins at? oh, and on my 2010, i wouldn't say it's a rattle, more like a clicking noise. mine sounds like it's coming from the primary case. i got a buddy at work with an '07 street bob and his is doing the same.

 

Just read the bulletin myself. It states is applies to CVO models only. WTF???

 

My 07 was bad, but maybe because of HD Syn 3. My 2011 I run Redline ShockProof & no noise.

 

SE compensator & IDS, Go ahead and change these now or you will be replacing the tranny mainshaft bearing.

 

I've got an '07 FLHTC. Red Line Shockproof Heavy quieted it down quite a bit. I still can hear a rattle in sixth especially when the drive train is under little or no load. It may be a little noisy but no tranny problems yet.

 

drain trans put in mobil 1 gear oil 75/140 it will be quiet as a church mouse.ride safe REWRIGHT.

 

mine did it when new ('11 SG) i put lucas 75/140 in it right away and its barely noticeable anymore

also once you get rid of the cat if you havent already it will help out because the fluid doesnt get as hot