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Old 05-22-2009, 04:57 PM   #1
JapCarRealGood
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Outback Sport 98 LGT 5spd into a 98 OBS?

I have a 98 2.2L OBS with a bad 5 speed (stuck in 5th gear & won't come out)

I found 5spd 98 2.5L LGT at the junk yard, but its missing the rear diff.

Will this swap work, are the final drives the same, and can I use my rear diff.

Thx in advance,

Barry
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Old 05-25-2009, 05:14 PM   #2
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anybody?
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Old 05-25-2009, 07:43 PM   #3
207STi
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3.454 / 1.947 / 1.366 / 0.972 / 0.738 / 3.900FD - '02-'05 USDM WRX
3.454 / 1.947 / 1.366 / 0.972 / 0.738 / 3.700FD - '06-'07 USDM WRX
3.166 / 1.882 / 1.296 / 0.972 / 0.738 / 4.111FD - '08-current USDM WRX
3.454 / 1.947 / 1.366 / 0.972 / 0.738 / 4.444FD - '04-'08 Forester 2.5XT
3.454 / 2.062 / 1.448 / 1.088 / 0.780 / 4.111FD - '04-current Forester non-turbo
3.166 / 1.882 / 1.296 / 0.972 / 0.738 / 4.111FD - '05-current USDM Legacy 2.5GT
3.166 / 1.882 / 1.296 / 0.972 / 0.738 / 4.444FD - '05-current USDM Outback 2.5XT
3.545 / 2.111 / 1.448 / 1.088 / 0.780 / 4.111FD - '98-'01 USDM Impreza 2.5RS
3.545 / 2.111 / 1.448 / 1.088 / 0.780 / 3.900FD - '96-'01 USDM Impreza L/OBS
3.545 / 2.111 / 1.448 / 1.088 / 0.780 / 4.111FD - '96-'99 USDM Legacy 2.5GT
3.545 / 2.111 / 1.448 / 1.088 / 0.871 / 4.111FD - '96-'99 USDM Legacy Outback
3.454 / 2.062 / 1.448 / 1.088 / 0.871 / 4.111FD - '00-'07 USDM Outback
3.454 / 2.062 / 1.448 / 1.088 / 0.825 / 4.111FD - '08-current USDM Outback
3.454 / 2.062 / 1.448 / 1.088 / 0.780 / 4.111FD - '02-'04 USDM Impreza 2.5RS/'05 Impreza 2.5RS Sport
3.545 / 1.947 / 1.366 / 0.972 / 0.780 / 4.111FD - '93-'95 USDM Impreza L/Brighton AWD

Taken from the learning to choose your gear ratios sticky


appears they both have a 4.111 final drive though, so you should be ok, don't quote me on that though.

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Old 05-25-2009, 08:19 PM   #4
JapCarRealGood
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^ Thx!

Are the gearboxes the same though?
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Old 05-28-2009, 04:27 PM   #5
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I just found out it'll work, thx for the help foolio
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Old 05-28-2009, 04:33 PM   #6
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Might wanna think again..... I bolded the different final drive ratios, and have personally dealt with both transmissions being discussed. Find a 4.11:1 rear diff.....they gotta be around super cheap!

Jay Storm
Quote:
Originally Posted by Fooliojesus View Post
3.454 / 1.947 / 1.366 / 0.972 / 0.738 / 3.900FD - '02-'05 USDM WRX
3.454 / 1.947 / 1.366 / 0.972 / 0.738 / 3.700FD - '06-'07 USDM WRX
3.166 / 1.882 / 1.296 / 0.972 / 0.738 / 4.111FD - '08-current USDM WRX
3.454 / 1.947 / 1.366 / 0.972 / 0.738 / 4.444FD - '04-'08 Forester 2.5XT
3.454 / 2.062 / 1.448 / 1.088 / 0.780 / 4.111FD - '04-current Forester non-turbo
3.166 / 1.882 / 1.296 / 0.972 / 0.738 / 4.111FD - '05-current USDM Legacy 2.5GT
3.166 / 1.882 / 1.296 / 0.972 / 0.738 / 4.444FD - '05-current USDM Outback 2.5XT
3.545 / 2.111 / 1.448 / 1.088 / 0.780 / 4.111FD - '98-'01 USDM Impreza 2.5RS
3.545 / 2.111 / 1.448 / 1.088 / 0.780 / 3.900FD - '96-'01 USDM Impreza L/OBS
3.545 / 2.111 / 1.448 / 1.088 / 0.780 / 4.111FD - '96-'99 USDM Legacy 2.5GT
3.545 / 2.111 / 1.448 / 1.088 / 0.871 / 4.111FD - '96-'99 USDM Legacy Outback
3.454 / 2.062 / 1.448 / 1.088 / 0.871 / 4.111FD - '00-'07 USDM Outback
3.454 / 2.062 / 1.448 / 1.088 / 0.825 / 4.111FD - '08-current USDM Outback
3.454 / 2.062 / 1.448 / 1.088 / 0.780 / 4.111FD - '02-'04 USDM Impreza 2.5RS/'05 Impreza 2.5RS Sport
3.545 / 1.947 / 1.366 / 0.972 / 0.780 / 4.111FD - '93-'95 USDM Impreza L/Brighton AWD

Taken from the learning to choose your gear ratios sticky


appears they both have a 4.111 final drive though, so you should be ok, don't quote me on that though.

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Old 05-28-2009, 04:36 PM   #7
JapCarRealGood
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I ordered a 98 LGT 4.11 rear diff from a junk yard so I'm good
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Old 05-28-2009, 05:13 PM   #8
Storm
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Ahhh....yup. Good to go that way!

I'd take that OBS setup off your hands if I didn't live so stinkin far away......Once you swap it out, pull the broke box apart for a learning experience. You may find a broken shift fork being the only thing to need replaced. Doable by the enthusiast mechanic.

Jay
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