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Discussion Starter #1
Hi everyone,

Has anyone bought one of 3SX’s Billet Input Shaft Bearings? If so, what do you think of it? Mine rattles like a mofo and i’m tired of hearing it so I finally bit the bullet and bought the bearing. Additionally, what kind of fluid are you using with it? Regular gear oil or straight 30W motor oil?

Thanks
 
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Probably not your rattle. Lots of potential causes but some common ones:

Chipped gear tooth
Rough engine idle
Damaged clutch hub and springs
Incorrect counter shaft preloads
Bent shift fork or rails.
Mysteries of the universe

These transmissions have a design flaw in that the input shaft bearings are roller/ball bearings instead of tapered roller bearings, so there is no preload.

The end case bearings are considered in spec if they even have .014" of thrust play so that is a lot of input shaft movement.

The 3sx input bearing oring is too large. We have the correct one on our site.

Run redline mtl

Sent from my SM-G975U1 using Tapatalk
 

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Registered
Joined
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52 Posts
Discussion Starter #3
Probably not your rattle. Lots of potential causes but some common ones:

Chipped gear tooth
Rough engine idle
Damaged clutch hub and springs
Incorrect counter shaft preloads
Bent shift fork or rails.
Mysteries of the universe

These transmissions have a design flaw in that the input shaft bearings are roller/ball bearings instead of tapered roller bearings, so there is no preload.

The end case bearings are considered in spec if they even have .014" of thrust play so that is a lot of input shaft movement.

The 3sx input bearing oring is too large. We have the correct one on our site.

Run redline mtl

Sent from my SM-G975U1 using Tapatalk
I think I might’ve found the source of my rattle...
289493
289494
 
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I cant really tell but are the shims missing? We have a vid on YouTube showing how to set the shims up on the end case.

Sent from my SM-G975U1 using Tapatalk
 
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