WJM Posted July 7, 2005 Share Posted July 7, 2005 yeah...so many things change is 20 years.... Hm. Just rust? Cliff notes: 2005 STi diff and 1985 RX diff look the same except for the 20 year buildup of rust on the RX unit. Link to comment Share on other sites More sharing options...
soobmater Posted July 7, 2005 Share Posted July 7, 2005 wow those have a lot in common lol. Link to comment Share on other sites More sharing options...
JWX Posted July 7, 2005 Share Posted July 7, 2005 it was an 88 :-p Link to comment Share on other sites More sharing options...
iluvdrt Posted July 7, 2005 Share Posted July 7, 2005 if it works, dont fix it. Link to comment Share on other sites More sharing options...
WJM Posted July 7, 2005 Author Share Posted July 7, 2005 it was an 88 :-p 85 was the same. Link to comment Share on other sites More sharing options...
WJM Posted July 7, 2005 Author Share Posted July 7, 2005 if it works, dont fix it. They tried...the rear diffs in these new ones....well, SUCK....horribly. They dont do much of anything at all. yet another reason i love my over-engineered Gen3 Leone so much. Link to comment Share on other sites More sharing options...
nkx Posted July 7, 2005 Share Posted July 7, 2005 keep in mind it IS just the exterior :-p... Link to comment Share on other sites More sharing options...
subyrally Posted July 7, 2005 Share Posted July 7, 2005 whats the ratio on the sti diff and the rx diff? is the ring and pinion interchangable? Link to comment Share on other sites More sharing options...
ballitch Posted July 7, 2005 Share Posted July 7, 2005 rear diffs are like fat girls man, its whats on the inside that counts. ~Josh~ Link to comment Share on other sites More sharing options...
FirstSubaruGLwagon Posted July 7, 2005 Share Posted July 7, 2005 Shame the newer engine and tranny won't just drop in to my 86, like the Rdiffy :-p Link to comment Share on other sites More sharing options...
erik litchy Posted July 7, 2005 Share Posted July 7, 2005 Shame the newer engine and tranny won't just drop in to my 86, like the Rdiffy :-p give it a go Link to comment Share on other sites More sharing options...
MorganM Posted July 7, 2005 Share Posted July 7, 2005 Whats the final drive ratio? Is the WRX one an LSD? Link to comment Share on other sites More sharing options...
calebz Posted July 7, 2005 Share Posted July 7, 2005 All USDM WRX rear diffs are LSD I think.. Link to comment Share on other sites More sharing options...
mcbrat Posted July 7, 2005 Share Posted July 7, 2005 yeah...so many things change is 20 years.... I'm guessing it's a 3.900 Viscous..... if the innards are identical to the Turbo Legacy VLSD, then you could use those stubs so it would work with the EA81/82 rear axles..... Link to comment Share on other sites More sharing options...
WJM Posted July 7, 2005 Author Share Posted July 7, 2005 yeah its a 3.9 VLSD. all WRX's are 3.545 VSLDs until the 06's come out. the STi is some kind of junk 3.9 VLSD....well, all the VLSD's are junk. Link to comment Share on other sites More sharing options...
kay95 Posted July 7, 2005 Share Posted July 7, 2005 that cant be a sti rear because they use a r-180 and that is a r-160 and even if it was from a STI they dont use a viscous rear it has a mechanical limited slip Link to comment Share on other sites More sharing options...
WJM Posted July 7, 2005 Author Share Posted July 7, 2005 that cant be a sti rear because they use a r-180 and that is a r-160 and even if it was from a STI they dont use a viscous rear it has a mechanical limited slip It is an STi diff. Holding it up under an STi and Legacy XT...its the same unit. as far as the VLSD vs clutch type on the STi... I've seen the parts catalog...SUBARU calls is a mecanical...yes...WRX is a viscous....yes....but...up in the air, they both act the SAME....they act as a viscous. As far as contents...the rear diff from Stompy was sent off to get built up...Triple E Performance (who builds all the Spec Miata diffs and more) tore it down...basically his responce was "This is an open diff with useless clutch plates in it." Link to comment Share on other sites More sharing options...
Do It Sidewayz Posted July 8, 2005 Share Posted July 8, 2005 yeah...goes back further than that. ever looked under the rear end of a Datsun 510?? Link to comment Share on other sites More sharing options...
WJM Posted July 8, 2005 Author Share Posted July 8, 2005 yeah...goes back further than that. ever looked under the rear end of a Datsun 510?? Yep. Link to comment Share on other sites More sharing options...
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