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Old 02-11-2019, 05:23 PM   #1
fartbox420
Scooby Newbie
 
Member#: 483915
Join Date: Mar 2018
Location: Canada
Vehicle:
2004 wrx
WRB

Default New? 10kg center diffs for 5mt and 6mt available. (Viscous)

While searching for parts i stumbled upon these 10 kg/50rpm Viscous Diffs for 5MT and 6MT transmissions.

Edit: I went from excited to confused. I keep seeing it called 10kg/50rpm, im wondering if this is accurate i thought Subaru rated them by 100 rpm. 10 at 50 would be 20 at 100rpm right?

5MT Part # ST3891355010 and link
https://www.amazon.com/STI-CENTER-DE.../dp/B075VXD765

6MT Part # ST389134S010 and link:
https://www.amazon.com/STI-CENTER-VI.../dp/B075VWRR2K

I know people talk about the old 12kg and 20kg Subaru Center diffs, and how they are better for off-road, allow power to be sent to wheels with more traction, making it less understeery. These are all things ive read about the 12kg center. and i believe they only worked on the old 5mt pre-2000s.

It appears they are making a 10kg one now for newer transmissions for motorsports like rally. maybe it is supposed to be considered an off-road only part. It does mention "it features a center differential (lock) which locks the differential function completely." - from Amazon listing.

has this been around for awhile? It seems to be a cool upgrade for people who like to play in the dirt. Also, i have read the old 12kg was manageable for the street so i don't see why a 10 wouldn't be.

I would love to know more info about these upgraded viscous center differentials especially the locking part, it this also in the stock 4kg? i wonder how fast it goes to full lock mode.
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Last edited by fartbox420; 02-11-2019 at 10:55 PM. Reason: confusion
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Old 02-13-2019, 03:01 PM   #2
fartbox420
Scooby Newbie
 
Member#: 483915
Join Date: Mar 2018
Location: Canada
Vehicle:
2004 wrx
WRB

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I have come to the conclusion that these are 20kg /100rpm center diffs for the newer 5mt and 6mt (non-DCCD) transmissions.
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