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Old 03-31-2009, 06:21 AM   #1
lagodcm
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Default 04 JDM sti 6MT swap into 06 wrx

Im about to purchause this and the seller is sayin I dont need rear axles. I thought you needed rear axles, hubs and etc... if you swaped to a R 180??? Is this because its JDM? Seller says the kit comes with...Tranny, diff, front axles, shift fork, driveshaft and shift linkage all from a JDM 04 STI.
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Old 03-31-2009, 07:51 AM   #2
daWagon
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Find out what the center diff ratio is, that will answer your question. Did you read this thread? http://forums.nasioc.com/forums/show....php?t=1201152

I can't remember what the rear diff is on the 04 WRX's but I think it's still 3.54, so if the tranny he's selling you hasn't had the center diff change, I'd say it won't work ... you can also swap in a r&p in to you current diff, but it won't be a nice as the 180.
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Old 03-31-2009, 09:37 PM   #3
lagodcm
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The seller said it comes with a R 160 diff....And thats why I dont have to change axles. R 160 JDM 04 sti???
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Old 03-31-2009, 09:55 PM   #4
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Quote:
Originally Posted by lagodcm View Post
The seller said it comes with a R 160 diff....And thats why I dont have to change axles. R 160 JDM 04 sti???
if i were you i would run away fast that just sounds like a "i payed for a transmission and never got it" tread waiting to happen.
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Old 03-31-2009, 10:02 PM   #5
FuJi K
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If he says it comes with a R160 rear diff, and says you don't need axles... that means that the R160 is a 3.900FD. You should ask him if the R160 he's providing is a 3.900FD.

It's that simple....
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Old 03-31-2009, 10:33 PM   #6
lagodcm
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Yes. He said its a 3.90
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Old 03-31-2009, 11:08 PM   #7
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He swapped in the correct ratio to a R160.
Its not as strong as a R180, but it will work fine, and you don't have to swap rear axles and hubs.
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Old 03-31-2009, 11:53 PM   #8
lagodcm
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Sweet! Does $3200 sound like a good price? And I have to pay shipping of 6 to 800....
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Old 04-01-2009, 12:29 AM   #9
sch3838
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I'd rather get Mfactory gear set with that money. but that's just my opinion. i don't know much about price on jdm sti tranny, sorry i couldn't help
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Old 04-01-2009, 07:31 AM   #10
daWagon
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Quote:
Originally Posted by lagodcm View Post
Sweet! Does $3200 sound like a good price? And I have to pay shipping of 6 to 800....
I would take in to consideration whatever you can find out about the history of the tranny ... Was it raced? If so what kind or racing? How many miles? Was it ever in an accident? How many miles? Then try to make the best decision based on whatever answers you can get to those questions, and your gut feeling on how much you trust the seller.

The price doesn't seem too bad, but it's hard to say without knowing how many miles ... that price for 100,000 miles would kid of suck. 6MT's are strong, but abuse can still hurt the syncros.
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Old 04-01-2009, 07:58 AM   #11
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Quote:
Originally Posted by daWagon View Post
I would take in to consideration whatever u can find out about the history of the tranny ... Was it raced? If so what kind or racing? How many miles? Was it ever in an accident? How many miles? Then try to make the best decision based on whatever answers u can get to those questions, and ur gut feeling on how much u trust the seller.

The price doesn't cm too bad, but it's hard to say without knowing how many miles ... that price for 100,000 miles would kid of suck. 6MT's are strong, but abuse can still hurt the syncros.
Its from a company. They said they have sold hundreds of JDM tranny's and havent had a problem. The dude said it has 30-40k on it. Im kinda thinkin Mfactory gears. They should be able to handle a 20g setup.
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Old 04-01-2009, 09:52 AM   #12
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More importantly you buy it base on what your driving application is. I have a JDM 6spd because I do tracking/lapping runs. I love the short gearing, keeps me in the powerband all the time. If I was doing dragging and straightline stuff, a PPG set would be just fine.

I have driven 6spd, and PPG, and stock of a few trannies; FWD, 5spd AWD, WRX, FXT,...
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Old 04-01-2009, 02:15 PM   #13
lagodcm
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Quote:
Originally Posted by FuJi K View Post
More importantly u buy it base on what ur driving application is. I have a JDM 6spd because I do tracking/lapping runs. I love teh short gearing, keeps me in teh powerband all teh time. If I was doing dragging and straightline stuff, a PPG set would be just fine.

I have driven 6spd, and PPG, and stock of a few trannies; FWD, 5spd AWD, WRX, FXT,...
I like drag...thats why Im thinkin MFactory 1-4
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Old 04-01-2009, 02:46 PM   #14
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I would probably go LGT gears if I had to replace a 5-speed now. They can hold what power I would need.
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Old 04-01-2009, 04:08 PM   #15
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Quote:
Originally Posted by lagodcm View Post
Its from a company. They said they have sold hundreds of JDM tranny's and havent had a problem. The dude said it has 30-40k on it. Im kinda thinkin Mfactory gears. They should be able to handle a 20g setup.
My vendor also mentioned selling tonnes of them an not having any trouble but even from a company, there is still a chance that something can go wrong. I thought that spending more and buying mine from a vendor would more or less eliminate the possibility that something would go wrong but I had a huge nightmare with my swap ... case was cracked, parts were bent ... the vendor worked with me to a point, but still very time consuming. I know mine is a very rare case, but still there's always the chance something can go wrong, that's why I said that about trusting the person you buy from, vendor or private party.


Also consider that with the 6 speed you get the front diff upgrade too, as well as the DCCD option (if that JDM has it that is). That's going to affect the general handling and should also be considered with the fun to drive factor. Someone can correct me if I'm wrong but the front LSD is quite a bit better than on the WRX no? .. But for Drag racing ... I guess that wouldn't matter.
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Old 04-01-2009, 08:01 PM   #16
FuJi K
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Quote:
Originally Posted by lagodcm View Post
I like drag...thats why Im thinkin MFactory 1-4
You are better going with the PPG gearset, IMO.
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Old 04-02-2009, 12:10 AM   #17
lagodcm
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Quote:
Originally Posted by FuJi K View Post
You are better going with the PPG gearset, IMO.
JDM STI 6MT kit on its way.....Tranny/mount, shift fork/linkage ,clutch, pressure plate, flywheel, sti driveshaft, R 160 diff 3.9....They said I could use my stock axles. $3600 to my door....
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Old 04-02-2009, 03:18 AM   #18
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Quote:
Originally Posted by lagodcm View Post
JDM STI 6MT kit on its way.....Tranny/mount, shift fork/linkage ,clutch, pressure plate, flywheel, sti driveshaft, R 160 diff 3.9....They said I could use my stock axles. $3600 to my door....
^^^^Can I use all my stock axles?
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Old 04-03-2009, 08:12 PM   #19
FuJi K
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I'm unsure about the front. When it gets there, you'll find out. The ONLY WAY is try to put your front axles into the tranny. It's THAT simple... you have the parts, try to fit them!!!!
Same with the rear. So don't just sit there and ponder.
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Old 04-03-2009, 09:33 PM   #20
lagodcm
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Quote:
Originally Posted by FuJi K View Post
I'm unsure about the front. When it gets there, you'll find out. The ONLY WAY is try to put your front axles into the tranny. It's THAT simple... you have the parts, try to fit them!!!!
Same with the rear. So don't just sit there and ponder.
Yea, I wont.... just want everything I need when I start the install so im not stuck when somethin doesnt fit.
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Old 04-06-2009, 11:46 AM   #21
DiscoGsus
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The backs will fit since you kept the R160.

I don't know if the fronts fit on an 06.
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