trapdoor
Seasoned HDF Member
Joined: May 2008
Posts: 21,143
Likes: 12,707
From: South Carolina
Early 5 speed trap doors (through `86) had lever clutch throwout mechanism .
`86 and later had ball and ramp clutch throwout system .
`99 and later used a bearing with a larger outside diameter. This trap door can be used on earlier models, you just need to use the new bearings.
These are not all the differences, some have mount tabs ect. for use on specific models.
Now, tell us what you are trying to do....
`86 and later had ball and ramp clutch throwout system .
`99 and later used a bearing with a larger outside diameter. This trap door can be used on earlier models, you just need to use the new bearings.
These are not all the differences, some have mount tabs ect. for use on specific models.
Now, tell us what you are trying to do....
Last edited by Dan89FLSTC; Apr 16, 2020 at 06:01 PM.
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Stellar HDF Member
Joined: May 2018
Posts: 2,170
Likes: 435
From: australia
im putting a reverse on my trike which has the early 5 speed with hydraulic clutch. ive got the later trapdoor and clutch cover to be fitted.my next question is are both end threads on main and counter shafts the same on all models
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Stellar HDF Member
Joined: May 2018
Posts: 2,170
Likes: 435
From: australia
just went to my harley mech and said the sprockets supplied with the reverse will not screw on to the main and counter shafts but did screw on to a later shaft he had there so the early 5 speed must have a different thread.does anyone know what that thread size is. he even tried to run a three quarter inch die nut on the shaft with no success thanks all
Last edited by john lee; Apr 17, 2020 at 01:58 AM.
Seasoned HDF Member
Joined: May 2008
Posts: 21,143
Likes: 12,707
From: South Carolina
As far as OEM parts go:
All 5 speed mainshafts and countershafts use the same part number nut to retain the bearings, so we know that the thread pitch on all shafts is the same.
The part number for the nut is 35078-79.
Mainshaft part numbers changed several times, but the threads are the same.
Countershafts are all the same part number, all years.
"Early" and "Late" doesn`t tell us anything, this is a tech forum, tell us what year parts you are working with.
Your "mechanic" should have known that the threads on all 5 speed transmission shafts are the same...
All 5 speed mainshafts and countershafts use the same part number nut to retain the bearings, so we know that the thread pitch on all shafts is the same.
The part number for the nut is 35078-79.
Mainshaft part numbers changed several times, but the threads are the same.
Countershafts are all the same part number, all years.
"Early" and "Late" doesn`t tell us anything, this is a tech forum, tell us what year parts you are working with.
Your "mechanic" should have known that the threads on all 5 speed transmission shafts are the same...
Last edited by Dan89FLSTC; Apr 17, 2020 at 09:20 AM.
Seasoned HDF Member
Joined: Nov 2006
Posts: 12,878
Likes: 5,449
From: la la land jerzey
lets try this - This way - your reverse china gear set has the Wrong Thread < wow what a shocker
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Stellar HDF Member
Joined: May 2018
Posts: 2,170
Likes: 435
From: australia
but they screwd easily on to a shaft he had there.my shafts have the wrong threads for some reason
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