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Old 12-24-2008, 08:26 PM   #1
bradze
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Default any differences on r180 differential from usdm to jdm

my wrx has a usdm ej257 and trans/rear diff, axles, hubs from a jdm sti. ive been told by the garage that got it for me that its exactly the same except for 5th and 6th gear. just need to make sure before i get a carbon driveshaft.
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Old 12-24-2008, 11:01 PM   #2
bradze
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just read an edm sti diff is different. they were both with a 2.0l, need to talk to PIA
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Old 12-25-2008, 01:40 AM   #3
FourOnTheFloor65
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Some JDM 01-06 R180s are Suretrack and some are mechanical clutch. Then in 07 some are torsen and most are clutch.

Some have the rear diff temp sensor some don't.

Then the most important part for you, when ordering a driveshaft, is that there are two different flange bolt patterns. Some use the smaller one from the R160 and some use the larger one like we have on our USDM R180 rears. I am not sure if its a year dependant or diff type dependant thing. They can easily be changed though, and I think the R160 and R180 yokes are interchangeable. You can get the yokes for about $80 at the dealer in case you need the larger one.
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Old 01-09-2009, 09:36 AM   #4
thejean
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Do you know what type of the diff the V8 R180 is?
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Old 01-10-2009, 03:34 AM   #5
FourOnTheFloor65
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It depends. If the car it came out of had DCCD, it is a mechanical clutch type. If the car was non DCCD it is Suretrac.
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Old 01-10-2009, 12:12 PM   #6
thejean
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It is DCCD so I am stoked that I get the clutch-type.
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Old 01-10-2009, 12:30 PM   #7
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Quote:
Originally Posted by FourOnTheFloor65 View Post
It depends. If the car it came out of had DCCD, it is a mechanical clutch type. If the car was non DCCD it is Suretrac.
That's accurate..I have a mechanical v8 R180 - DCCD type transmission too.
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Old 01-21-2009, 01:48 PM   #8
thejean
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So where does the temp sensor wires go when swapping into a WRX as I don't believe this is in the WRX harness.
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