6-speed swap, 07 Spec.B Axels?

gotsol · 09-26-2006, 04:07 PM

For those who are swapping in 6-speeds into the a WRX

Since the 07 Spec B has the r180 diff with the six speed and the bolt patern for the wheels is the same as the WRX (5x100) I think the 07 SpecB axels would work on a WRX and r180 without having to swap hubs.

But I'm not sure if Legacy axels are longer then Impreza axels.

any thoughs?

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DoctorNick · 09-26-2006, 04:54 PM

the 07 uses a 5x100 setup?! What rear brakes are on the spec B?

I am gonna have to make a trek to the local dealership and investigate this.

Its this or DSS r160 hubs to r180 dif axles.

Kostamojen · 09-26-2006, 04:59 PM

The brakes are the same as the LGT. Ill peak at the 07 spec-b, its like 10 feet from me

Kostamojen · 09-26-2006, 05:00 PM

I cant tell on the axles. The rear does look like an R180 though.

Kostamojen · 09-26-2006, 05:22 PM

Alright, the FRONT Spec-B 6-speed axles are the same as the LGT axles. REARS are different.

gotsol · 09-27-2006, 08:15 AM

The 07 uses the same wheels as 06, which are 5x100. Can you check the rear axels of the SpecB vs STI?

Keep in mind, factory SpecB axels probably cost as much as the Driveshaft Shop (I have no nubmers I am just speculating)

Jaxx · 09-27-2006, 09:03 AM

are you sure the spec b has the r180 ...

its not the bolt pattern thats differnt/the proublem is the diamater/spline count of the axel/hub

Kostamojen · 09-27-2006, 02:20 PM

Spec-B rear diff: 1.1qt capacity, helical LSD.
STI rear diff: 1.1qt capacity, mechanical LSD.

Every other rear diff has a .8qt capacity... Its a R180.

I cant tell about the rear axles yet though, still ressearching.

(Im not using part numbers btw, im using the tech documents)

Kostamojen · 09-27-2006, 02:25 PM

Rear axles...

Spec-B: EBD+DOJ, .87in Diameter, 375.1mm length
STI: EBD+EDJ, .98in diameter, 316mm length

So no, they are not the same.

DoctorNick · 09-27-2006, 02:32 PM

whats the length of RS axles?

Kostamojen · 09-27-2006, 02:56 PM

What year?

Kostamojen · 09-27-2006, 03:08 PM

Odd, im looking at 03 axles, and the rear axles on the 03's are not the same length on each side

The left is 358, right 368. Wagons are 10mm shorter.

Gator GT · 09-28-2006, 06:49 PM

Quote:

Originally Posted by Kostamojen

Spec-B rear diff: 1.1qt capacity, helical LSD.
STI rear diff: 1.1qt capacity, mechanical LSD.

Every other rear diff has a .8qt capacity... Its a R180.

I cant tell about the rear axles yet though, still ressearching.

(Im not using part numbers btw, im using the tech documents)

SA-WEET!!!

DoctorNick · 09-28-2006, 06:54 PM

Well I gotta pull my axles out and see what they are. I think they are 00 rs axles. (lsd).

I have a v4-6 RA 4.44 r180. I would love to just grab some spec B axles and have them fit. But for somereason, I am doubting this.

Anyone work for a dealership and wanna loan me some axles. I can test them out. If they work, i'll buy them

Kostamojen · 09-28-2006, 08:53 PM

Most axles like that arent stocked, they would have to be special ordered (there are far to many kinds of axles to keep in stock).

The spec-b axles wont fit, I can tell you that for sure. They are 7cm longer than STI axles...

gotsol · 09-29-2006, 08:18 AM

Quote:

Originally Posted by Kostamojen

Most axles like that arent stocked, they would have to be special ordered (there are far to many kinds of axles to keep in stock).

The spec-b axles wont fit, I can tell you that for sure. They are 7cm longer than STI axles...

that's what I was afraid of, thanks for looking into this though

Kostamojen · 09-29-2006, 12:32 PM

Oh, and dont forget that since 2000, Legacys have had the multi-link rear suspension and COMPLETELY different rear hubs than Imprezas...

DaFastOne · 09-29-2006, 01:33 PM

what is the gear ratio on the spec B r180 diff?

Kostamojen · 09-29-2006, 01:43 PM

3.545 with 39/11 gear teeth.

DaFastOne · 09-29-2006, 06:04 PM

so i will assume this can be techincally a upgrade for a wrx rear end, that is planning to still use stock tranny. (but remembering to use a sti rear axles and brembos and hubs)

Kostamojen · 09-29-2006, 11:50 PM

Might work, im not sure if the spec-b helical LSD has different splines than the STI LSD though... Ill have to check that next week.

PHATsuby · 09-30-2006, 12:13 AM

are you saying these spec B's will fit my BE? hmmm.... I need an R180, then again they likely won't hold 600whp either.

Ben

Kostamojen · 09-30-2006, 05:40 PM

I dont know if the BE hubs are the same as the current gen hubs, but ill check that too...

Kostamojen · 10-02-2006, 12:44 PM

I can't tell if the spines are the same or not between the spec-b and sti.

Looks like the rear hubs are the same, or at least the rear suspension components are on the 2000-04 legacys and 05+ legacys.

srREXed · 10-16-2009, 02:50 AM

how thick are wrx rear axles? Early 04 model... If they are the same thickness as the spec b axles couldnt you swap the center axle portion with just the cv inner/diff side components?

09-26-2006, 04:07 PM	#1
gotsol Scooby Specialist Member#: 17346 Join Date: Apr 2002 Chapter/Region: South East Location: All Over NC Vehicle: 08 Cayman S White	6-speed swap, 07 Spec.B Axels? For those who are swapping in 6-speeds into the a WRX Since the 07 Spec B has the r180 diff with the six speed and the bolt patern for the wheels is the same as the WRX (5x100) I think the 07 SpecB axels would work on a WRX and r180 without having to swap hubs. But I'm not sure if Legacy axels are longer then Impreza axels. any thoughs? * Registered users of the site do not see these ads.

09-26-2006, 05:22 PM	#5
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: Fire Caves Vehicle: 2019 Macan 4cyl 1993 Impreza FWD WRX swap	Alright, the FRONT Spec-B 6-speed axles are the same as the LGT axles. REARS are different. Last edited by Kostamojen; 09-26-2006 at 05:56 PM.

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09-26-2006, 04:54 PM	#2
DoctorNick Scooby Guru Member#: 7022 Join Date: May 2001 Chapter/Region: MWSOC Location: Evanston Vehicle: 2001 Forester Arcadia green	the 07 uses a 5x100 setup?! What rear brakes are on the spec B? I am gonna have to make a trek to the local dealership and investigate this. Its this or DSS r160 hubs to r180 dif axles.

09-26-2006, 04:59 PM	#3
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: Fire Caves Vehicle: 2019 Macan 4cyl 1993 Impreza FWD WRX swap	The brakes are the same as the LGT. Ill peak at the 07 spec-b, its like 10 feet from me

09-26-2006, 05:00 PM	#4
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: Fire Caves Vehicle: 2019 Macan 4cyl 1993 Impreza FWD WRX swap	I cant tell on the axles. The rear does look like an R180 though.

09-27-2006, 08:15 AM	#6
gotsol Scooby Specialist Member#: 17346 Join Date: Apr 2002 Chapter/Region: South East Location: All Over NC Vehicle: 08 Cayman S White	The 07 uses the same wheels as 06, which are 5x100. Can you check the rear axels of the SpecB vs STI? Keep in mind, factory SpecB axels probably cost as much as the Driveshaft Shop (I have no nubmers I am just speculating)

09-27-2006, 09:03 AM	#7
Jaxx Scooby Guru Member#: 177 Join Date: Aug 1999 Chapter/Region: NWIC Location: Austin, Texas, USA Vehicle: The 93 W/EJ20K-sold Subaru-less :(	are you sure the spec b has the r180 ... its not the bolt pattern thats differnt/the proublem is the diamater/spline count of the axel/hub

09-27-2006, 02:20 PM	#8
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: Fire Caves Vehicle: 2019 Macan 4cyl 1993 Impreza FWD WRX swap	Spec-B rear diff: 1.1qt capacity, helical LSD. STI rear diff: 1.1qt capacity, mechanical LSD. Every other rear diff has a .8qt capacity... Its a R180. I cant tell about the rear axles yet though, still ressearching. (Im not using part numbers btw, im using the tech documents)

09-27-2006, 02:25 PM	#9
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: Fire Caves Vehicle: 2019 Macan 4cyl 1993 Impreza FWD WRX swap	Rear axles... Spec-B: EBD+DOJ, .87in Diameter, 375.1mm length STI: EBD+EDJ, .98in diameter, 316mm length So no, they are not the same.

09-27-2006, 02:32 PM	#10
DoctorNick Scooby Guru Member#: 7022 Join Date: May 2001 Chapter/Region: MWSOC Location: Evanston Vehicle: 2001 Forester Arcadia green	whats the length of RS axles?

09-27-2006, 02:56 PM	#11
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: Fire Caves Vehicle: 2019 Macan 4cyl 1993 Impreza FWD WRX swap	What year?

09-27-2006, 03:08 PM	#12
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: Fire Caves Vehicle: 2019 Macan 4cyl 1993 Impreza FWD WRX swap	Odd, im looking at 03 axles, and the rear axles on the 03's are not the same length on each side The left is 358, right 368. Wagons are 10mm shorter.

09-28-2006, 06:54 PM	#14
DoctorNick Scooby Guru Member#: 7022 Join Date: May 2001 Chapter/Region: MWSOC Location: Evanston Vehicle: 2001 Forester Arcadia green	Well I gotta pull my axles out and see what they are. I think they are 00 rs axles. (lsd). I have a v4-6 RA 4.44 r180. I would love to just grab some spec B axles and have them fit. But for somereason, I am doubting this. Anyone work for a dealership and wanna loan me some axles. I can test them out. If they work, i'll buy them

09-28-2006, 08:53 PM	#15
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: Fire Caves Vehicle: 2019 Macan 4cyl 1993 Impreza FWD WRX swap	Most axles like that arent stocked, they would have to be special ordered (there are far to many kinds of axles to keep in stock). The spec-b axles wont fit, I can tell you that for sure. They are 7cm longer than STI axles...

09-29-2006, 12:32 PM	#17
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: Fire Caves Vehicle: 2019 Macan 4cyl 1993 Impreza FWD WRX swap	Oh, and dont forget that since 2000, Legacys have had the multi-link rear suspension and COMPLETELY different rear hubs than Imprezas...

09-29-2006, 01:33 PM	#18
DaFastOne Scooby Newbie Member#: 19396 Join Date: May 2002 Location: BAY AREA, CA Vehicle: 02/6 FrankensteinWRX black	what is the gear ratio on the spec B r180 diff?

09-29-2006, 01:43 PM	#19
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: Fire Caves Vehicle: 2019 Macan 4cyl 1993 Impreza FWD WRX swap	3.545 with 39/11 gear teeth.

09-29-2006, 06:04 PM	#20
DaFastOne Scooby Newbie Member#: 19396 Join Date: May 2002 Location: BAY AREA, CA Vehicle: 02/6 FrankensteinWRX black	so i will assume this can be techincally a upgrade for a wrx rear end, that is planning to still use stock tranny. (but remembering to use a sti rear axles and brembos and hubs)

09-29-2006, 11:50 PM	#21
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: Fire Caves Vehicle: 2019 Macan 4cyl 1993 Impreza FWD WRX swap	Might work, im not sure if the spec-b helical LSD has different splines than the STI LSD though... Ill have to check that next week.

09-30-2006, 12:13 AM	#22
PHATsuby Scooby Guru Member#: 13617 Join Date: Dec 2001 Chapter/Region: MWSOC Location: MN Vehicle: 2001 Legacy GT back to stock is a project too	are you saying these spec B's will fit my BE? hmmm.... I need an R180, then again they likely won't hold 600whp either. Ben

09-30-2006, 05:40 PM	#23
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: Fire Caves Vehicle: 2019 Macan 4cyl 1993 Impreza FWD WRX swap	I dont know if the BE hubs are the same as the current gen hubs, but ill check that too...

10-02-2006, 12:44 PM	#24
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: Fire Caves Vehicle: 2019 Macan 4cyl 1993 Impreza FWD WRX swap	I can't tell if the spines are the same or not between the spec-b and sti. Looks like the rear hubs are the same, or at least the rear suspension components are on the 2000-04 legacys and 05+ legacys.

10-16-2009, 02:50 AM	#25
srREXed Scooby Specialist Member#: 72234 Join Date: Oct 2004 Chapter/Region: South East Location: S. FL... Now Fort Polk, LA Vehicle: 2004 WRX SRR EJ257-35R-6MT	how thick are wrx rear axles? Early 04 model... If they are the same thickness as the spec b axles couldnt you swap the center axle portion with just the cv inner/diff side components?