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Any HD tech with transmission knowledge?

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Old Apr 10, 2014 | 07:46 PM
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Default Any HD tech with transmission knowledge?
Is there any yellow metal (brass or copper) parts (gears or bushings) in a HD transmission ?

I know that gearbox lub (75W90, 80W90, 75W140, 75W250) can corrode yellow metal when they reach 85C (185F).

Thanks!
 
Last edited by Zeus55; Apr 10, 2014 at 09:42 PM.
Old Apr 10, 2014 | 08:08 PM
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No brass...


Aluminum case, all steel bearings/shafts/gears/forks. There is some plastic, used for bearing cages, and rubber used for seals/o-rings.


Oh, I'm not a tech, and I never stay at Holiday Inn Express. I'm just a frequent visitor to the inside of my transmission!
 
Last edited by Def Mute; Apr 10, 2014 at 08:10 PM.
Old Apr 10, 2014 | 08:11 PM
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Yes there is some brass but not worth loosing sleep over. I think its one shifter bushing and 3 forks with brass.
 
Old Apr 10, 2014 | 09:17 PM
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With the price of oil now days, maybe it's Gold. Hope you didn't throw it away!!
 
Old Apr 10, 2014 | 09:17 PM
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no brass on forks. I forgot the bushing on the shift pawl shaft...
 
Old Apr 10, 2014 | 09:20 PM
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Originally Posted by Def Mute
no brass on forks. I forgot the bushing on the shift pawl shaft...
Plenty of brass on my 6 speed forks. What tranny do you have?





 
Old Apr 10, 2014 | 09:22 PM
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Use a GL1 oil.
 

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Old Apr 10, 2014 | 09:23 PM
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Are you sure that's brass? Could it be titanium coating? I just checked Ronnie's microfiche, and they show no bushing on the shift pawl. Not testing your knowledge, just got me curious now...
 
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Old Apr 10, 2014 | 09:26 PM
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Originally Posted by Def Mute
Are you sure that's brass? Could it be titanium coating? I just checked Ronnie's microfiche, and they show no bushing on the shift pawl. Not testing your knowledge, just got me curious now...
I just went through my tranny and the shift pawl bushing was a coated brass type and no way that is a Ti coating. It was flaking off before I buffed them down The coating was about .007 thick. Its electroplated brass.
 
Old Apr 10, 2014 | 09:27 PM
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Originally Posted by Def Mute
Are you sure that's brass? Could it be titanium coating? I just checked Ronnie's microfiche, and they show no bushing on the shift pawl. Not testing your knowledge, just got me curious now...
Not arguing at all but what tranny do you have? It might be a 07+ 6 speed thing.


Here is my tranny build thread FWIW.
https://www.hdforums.com/forum/prima...y-rebuild.html
 



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