Subaru Gear Ratio Reference Guide
I find myself looking up gear ratios for Subaru Models a lot, so I figured I’d post it here as a reference for everyone! I got this information on NASIOC posted by the user North Ursalia.
Another goodie from North Ursalia is this PDF of transmission codes. Use it to look up your transmission by code!
Impreza 2.2l L models:
Automatic transmission gear ratios:
1st – 2.785
2nd – 1.545
3rd – 1.000
4th – 0.694
reverse – 2.272
final drive ratio – 4.11
Manual transmission gear ratios:
1st – 3.545
2nd – 1.947
3rd – 1.366
4th – 0.972
5th – 0.780
reverse – 3.333
final drive ratio – 3.90
Impreza 2.5RS models:
Automatic transmission gear ratios:
1st – 3.027
2nd – 1.619
3rd – 1.000
4th – 0.694
reverse – 2.272
final drive ratio – 4.44
Manual transmission gear ratios:
1st – 3.545
2nd – 2.111
3rd – 1.448
4th – 1.088
5th – 0.780
reverse – 3.333
final drive ratio – 4.11
WRX 2.0l models:
Automatic transmission gear ratios:
1st – 2.785
2nd – 1.545
3rd – 1.000
4th – 0.684
reverse – 2.272
final drive ratio – 4.11
Manual transmission gear ratios:
1st – 3.454
2nd – 1.947
3rd – 1.366
4th – 0.972
5th – 0.738
reverse – 3.333
final drive ratio – 3.90
2006/2007 WRX 2.5l models:
Automatic transmission gear ratios:
1st – 2.785
2nd – 1.545
3rd – 1.000
4th – 0.684
reverse – 2.272
final drive ratio – 3.90
Manual transmission gear ratios:
1st – 3.454
2nd – 1.947
3rd – 1.366
4th – 0.972
5th – 0.738
reverse – 3.333
final drive ratio – 3.70
2008 WRX 2.5l models:
Automatic transmission gear ratios:
1st – 2.785
2nd – 1.545
3rd – 1.000
4th – 0.684
reverse – 2.272
final drive ratio – 3.90
Manual transmission gear ratios:
1st – 3.166
2nd – 1.882
3rd – 1.296
4th – 0.972
5th – 0.780
reverse – 3.333
Final drive ratio – 3.900
Impreza WRX STi models:
2004-2006 manual transmission gear ratios:
1st – 3.636
2nd – 2.375
3rd – 1.761
4th – 1.346
5th – 0.971
6th – 0.756
reverse – 3.545
final drive ratio – 3.90
2007+ manual transmission gear ratios:
1st: 3.636
2nd: 2.235
3rd: 1.521
4th:1.137
5th:0.971
6th: 0.756
reverse – 3.545
final drive ratio – 3.90
Outback 3.0R/VDC/LL Bean
Automatic transmission gear ratios:
1st – 3.540
2nd – 2.264
3rd – 1.471
4th – 1.000
5th – 0.834
reverse – 2.370
final drive ratio – 3.583
2007 Legacy 2.5GT Spec.B
6-speed Manual transmission gear ratios:
1st – 3.636
2nd – 2.235
3rd – 1.521
4th – 1.137
5th – 0.891
6th – 0.707
reverse – ???
final drive ratio – 3.454
B-9 Tribeca
Automatic transmission gear ratios:
1st – 3.84
2nd – 2.35
3rd – 1.53
4th – 1.00
5th – 0.84
reverse – 2.77
final drive ratio – 3.58
SOURCE: NASIOC, North Ursalia
Can u put a ds39:10 in a 2002 wrx that had a 39:11
1992 Legacy L Wagon 2,2,N/A it came with a 4EAT that had a burnt up transmission from a blown transmission return line. Purchased a low mile 1992 4EAT turbo trans to replace the bad one that was in the wagon since I have a 1991 LSI turbo engine that will be going in the wagon to make it my turbo wagon project. My question is, I’m not sure on if the rear differential is going to match the 3.9 gear ratio of the 4EAT turbo transmission .I’ve Looking through a lot of Subaru forums and it seems like most of what I have been reading is it is a 4.11 rear diff ratio with I though was the 5 speed manual..