Zblad Posted September 28, 2019 Share Posted September 28, 2019 I bought a used 2009 legacy gt transmission and rear end. I checked the transmission code when I picked it up and It was the right one but couldn’t check the rear end. Long story short I got home and pulled the rear end cover off and it has DS37:9 ha 723 engraved into it. If I do the math the ratio is 4.11 but shouldn’t it be 3.9? Basically is this the wrong rear end? Link to comment Share on other sites More sharing options...
texy32 Posted September 29, 2019 Share Posted September 29, 2019 No legacy GT uses a 4.11 final drive The Outback XT uses a 4.44 final drive. The 2008 up WRX uses the 3.9 final drive They all have the same gear sets in them. The pinion and transfer gears are what differs So if you have a LGT 5spd you need 4.11 Link to comment Share on other sites More sharing options...
Max Capacity Posted October 2, 2019 Share Posted October 2, 2019 Up top I think there's a sticky with gear ratio's. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
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