When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Is that six-speed the "drop-in" kit or complete transmission replacement? What are your thoughts / experience with it?
It's the "kit" that you put in the stock case. It was already in there when I bought the bike. I only rode it about 5 miles before tearing it apart, but it shifted good. I'll be putting some miles on it soon and will let you know.
No way to get the rocker cover off of the rear with the engine in the bike. Crazy!
EDIT: Maybe cut the head off of that one bolt and replace the rocket cover with a new one LOL
I'm surprised. The three piece rocker covers let you take it apart and remove. At least that's how it worked with my 89 springer. I took the heads off too.
I'm surprised. The three piece rocker covers let you take it apart and remove. At least that's how it worked with my 89 springer. I took the heads off too.
I got to looking at it and there is a hole in the frame to get to that bolt that is so close. Whew!
For starters, some one has installed double nutted studs to secure the top engine mount.. A grade 8 bolt and hardened 1/8" washer is all that is needed.. Also a cut down allen wrench is all that is needed to secure or remove the left rear top cover bolt.. Although on my Softail, I Did drill a hole in the frame to ease the access..
One other thing I would like to add is that although the OD6 is a very good 6 Speed trans, a cam upgrade is the minimum to properly utilize the .86 ratio at 60 mph or even higher with out necessitating downshifting.. Primary and Secondary ratio are also a consideration..
Mikes 90 GG , should be able to handle it because I believe he has the EV27 cam which does produce decent power in the 2750 up range plus (and more importantly) I believe his gearing is better suited at 24/37-32/70 which should put him at 3000 rpm@80 mph and 2750 rpm@71 mph in 6th gear..
The newer 25/36-32/65 geared Softails at same mph noted above would be 2400 rpm at 70 mph in 6th and 2700@80 at which point I would replace the compensator sprocket with a 24 tooth which is a cheap upgrade and makes a decent difference..
Keep in mind these are my opinions and what i like.. Stock motors with stock gearing 95 up do not lug well with a .86:1 ratio 6th..
Last edited by 98hotrodfatboy; Jan 9, 2026 at 10:58 AM.
For starters, some one has installed double nutted studs to secure the top engine mount.. A grade 8 bolt and hardened 1/8" washer is all that is needed.. Also a cut down allen wrench is all that is needed to secure or remove the left rear top cover bolt.. Although on my Softail, I Did drill a hole in the frame to ease the access..
I need to correct myself.. My memory is getting bad.. The Fatboy does have the hole in the frame..
It was my Dyna that I drilled to ease the operation of removing same said bolts..
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.
