RetiredJake
Junior Member
If you have not done it, try switching the tranny lube to Spectro Heavy Duty Platinum 6-speed Transmission Oil even though you do not have a 6-spd. And change the fluid in the Primary to a fit-for-purpose product like HD Formula + or Spectro Heavy Duty Primary Chaincase Oil. Adjust the clutch, and check the primary chain tension. See if that helps.
TQ
I have done all of that on my Ultra. Changed the fluids twice now, 5,000 miles between changes. Still clunks so loud sometimes that I swear the neighbors the next block over can hear it. Everybody else in the world can make a transmission that shifts smoothly and quietly, why can't HD?