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Any HD tech with transmission knowledge?

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Old 04-10-2014, 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; 04-10-2014 at 09:42 PM.
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Old 04-10-2014, 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; 04-10-2014 at 08:10 PM.
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Old 04-10-2014, 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.
 
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Old 04-10-2014, 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!!
 
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Old 04-10-2014, 09:17 PM
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no brass on forks. I forgot the bushing on the shift pawl shaft...
 
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Old 04-10-2014, 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?





 
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Old 04-10-2014, 09:22 PM
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Use a GL1 oil.
 
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Old 04-10-2014, 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 04-10-2014, 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.
 
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Old 04-10-2014, 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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