Lverano Posted August 12, 2016 Share Posted August 12, 2016 I strongly believe I'm going to need to put a new rear differential in my 03 Subaru outback L.L. Bean and was wondering what years and models of types of differentials will be interchangeable? Link to comment Share on other sites More sharing options...
idosubaru Posted August 12, 2016 Share Posted August 12, 2016 (edited) Subaru rear differential failure is very rare? Need to match the findal drive ratio - H6 rear differential is a 4.11 final drive. Any 01-04 H6 rear differential for sure. Maybe later - not sure what changed 2005+ You can search opposed forces and see if those year cross reference to later year rear diffs too. Others have 4.11 too - something along the lines of - EJ22 AT's and EJ25 MT's. www.car-part.com if you want to get another LSD unit, that complicates things, weren't really available in the 90's. You could swap your LSD chunk over or just not worry about it since most of them fail over time/miles to open differentials anyway. Edited August 12, 2016 by grossgary 1 Link to comment Share on other sites More sharing options...
matt167 Posted August 12, 2016 Share Posted August 12, 2016 (edited) Forester S and Xs 5spd are 4.11 with the vlsd Edited August 12, 2016 by matt167 Link to comment Share on other sites More sharing options...
Lverano Posted August 12, 2016 Author Share Posted August 12, 2016 Subaru rear differential failure is very rare? Need to match the findal drive ratio - H6 rear differential is a 4.11 final drive. Any 01-04 H6 rear differential for sure. Maybe later - not sure what changed 2005+ You can search opposed forces and see if those year cross reference to later year rear diffs too. Others have 4.11 too - something along the lines of - EJ22 AT's and EJ25 MT's. www.car-part.com if you want to get another LSD unit, that complicates things, weren't really available in the 90's. You could swap your LSD chunk over or just not worry about it since most of them fail over time/miles to open differentials anyway. Might have been submerged, rear diff body very rust caked, whole top layer of metal rusted thick. I was chipping it off with a chisel. Maybe even just a rear axel is bad... I'm going to get some cheaper wired chassis ears and do a video, keep me posted.. Link to comment Share on other sites More sharing options...
idosubaru Posted August 12, 2016 Share Posted August 12, 2016 does it have a trailer hitch? maybe it was used with a boat/trailer. or it sat for awhile - if it's got salt and sits - it'll rust quick. if it's sitting over grass - that holds moisture to it for extended periods and rusts quickly. Link to comment Share on other sites More sharing options...
Lverano Posted August 12, 2016 Author Share Posted August 12, 2016 does it have a trailer hitch? maybe it was used with a boat/trailer. or it sat for awhile - if it's got salt and sits - it'll rust quick. if it's sitting over grass - that holds moisture to it for extended periods and rusts quickly. Yep, big old rusted trailer hitch, but the ball in the trunk looks like it was never touched. The car shows signs of sitting under s tree for some time for sure.. I'm going to try cnydave's idea of putting in the fwd fuse.. Which amperage do I use? Link to comment Share on other sites More sharing options...
heartless Posted August 16, 2016 Share Posted August 16, 2016 any spare fuse will work for that, amperage doesnt matter Link to comment Share on other sites More sharing options...
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