JackyBoi Posted January 28, 2017 Share Posted January 28, 2017 Hi guys. I'll get straight into it - I currently have an open diff in my Supra which replaced the A03B when it broke, but now the open diff is just unbearable and makes the car awful to drive. That being said I simply don't have the money for a new TRD or OS Giken, so I was wondering if there are other LSD's out there that can swap into the Supra and handle ~600bhp without too much trouble. My initial thought would be to look at diff's from a Lexus (or other Toyota's, or a different manufacturer) but I have no idea if they would be compatible on a Supra chassis or if they were even available as an LSD. Failing that is there another, cheaper LSD that can replace the OEM small diff? Or is it literally a case of sticking with OEM, or buying a big case TRD/OS Giken? So basically I was wondering if anyone can tell me if: - Are there any Lexus' with an LSD that will fit the Supra chassis? - What about Toyota, or another manufacturer? - Any other differentials available in the U.K. that would fit a Supra and not break the bank at over 1k? Thanks for your help everyone Quote Link to comment Share on other sites More sharing options...
Frank Bullitt Posted January 28, 2017 Share Posted January 28, 2017 (edited) I think the easiest answer is no to all of the above. Has the open diff been welded by any chance? If you are set on a TRD you should know they are now discontinued. If you manage to find a new one be prepared to pay some serious money. I wouldn't even consider paying the price people ask for these secondhand unless you know the person and know the diff has been properly looked after. You could be buying a ticking time bomb. Save up for the OS Giken. CW has been saying for years they are the best available for our cars. Maybe ask one of the traders if they would be prepared to split payments so the outlay easier to swallow. It's doesn't help immediately I know but would be a good way to get the best LSD available. E2A There are other cheaper aftermarket LSDs like Cusco or Kaaz but these are known to make alarming noises whilst driving. Edited January 28, 2017 by Frank Bullitt (see edit history) Quote Link to comment Share on other sites More sharing options...
JackyBoi Posted January 28, 2017 Author Share Posted January 28, 2017 I think the easiest answer is no to all of the above. TRD are discontinued, if you manage to find a new one be prepared to pay some serious money. I wouldn't even consider paying the price people ask for these secondhand unless you know the person and know the diff has been properly looked after. You could be buying a ticking time bomb. Save up for the OS Giken, CW has been saying they are the best for years. Maybe ask one of the traders to split payments so the outlay easier to swallow, it's doesn't help immediately I know. E2A There are other aftermarket LSD's but you would be wasting your money. Ah I see, that's a real shame I was hoping some of the Lexus LSD's might swap into a Supra, oh well! Looks like I'll be saving the pennies for an OS Giken for a while then. Thanks for the help mate Quote Link to comment Share on other sites More sharing options...
Chris Bailey Posted January 28, 2017 Share Posted January 28, 2017 Whifbitz use a LS400 Lexus diff which is a 3.2 ratio with there DCT gearbox conversion I believe. I may be wrong though. But the ratios will be diffrent because you're using the V160/61 box. So what i just said is probably irrelevant. Quote Link to comment Share on other sites More sharing options...
JamieP Posted January 28, 2017 Share Posted January 28, 2017 Whifbitz use a LS400 Lexus diff which is a 3.2 ratio with there DCT gearbox conversion I believe. I may be wrong though. But the ratios will be diffrent because you're using the V160/61 box. So what i just said is probably irrelevant. Lexus diff isn't LSD, but is the right 3.2 ratio for the v160/v161 Quote Link to comment Share on other sites More sharing options...
HarleyFDMD Posted January 28, 2017 Share Posted January 28, 2017 Can you not have your old LSD rebuilt? Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted January 28, 2017 Share Posted January 28, 2017 Ah I see, that's a real shame I was hoping some of the Lexus LSD's might swap into a Supra, oh well! Looks like I'll be saving the pennies for an OS Giken for a while then. Thanks for the help mate The rebuild kit for the diff will eat into your budget. Personally, I would just fit an oem lsd on your budget. The TRD ones are fantastic though, I'm on my second now. The car feels planted in corners, it makes no noise, and has no bad traits (except for a very tiny amount of wheel hop during full lock at low speed). As said, you'll struggle to find a red one now (I was very lucky) but from what I gather, the Giken one is even better if that's possible. Quote Link to comment Share on other sites More sharing options...
fastcar Posted January 28, 2017 Share Posted January 28, 2017 Not sure if the diff from the Lexus IS300 would fit! The mk1 uses the 2JZ-GE VVTI and auto box from the supra. The sports model IS300 come with an LSD for and some of SE models do too Quote Link to comment Share on other sites More sharing options...
Chris Bailey Posted January 28, 2017 Share Posted January 28, 2017 Lexus diff isn't LSD, but is the right 3.2 ratio for the v160/v161 Ahhh ok cool Quote Link to comment Share on other sites More sharing options...
np89 Posted January 28, 2017 Share Posted January 28, 2017 Ah I see, that's a real shame I was hoping some of the Lexus LSD's might swap into a Supra, oh well! Looks like I'll be saving the pennies for an OS Giken for a while then. Thanks for the help mate That information is completely wrong. Many Lexus diffs swap straight in. Aristo, gs300, Soarers, take your pick. Done Toyota/Lexus swaps on quite a few vehicles. Quote Link to comment Share on other sites More sharing options...
Chriss Posted January 29, 2017 Share Posted January 29, 2017 That information is completely wrong. Many Lexus diffs swap straight in. Aristo, gs300, Soarers, take your pick. Done Toyota/Lexus swaps on quite a few vehicles. /QUOTE] Really? first I have heard of this but great news if its true, have to look into some Aristo diffs. Quote Link to comment Share on other sites More sharing options...
np89 Posted January 29, 2017 Share Posted January 29, 2017 Really? first I have heard of this but great news if its true, have to look into some Aristo diffs. They do indeed. Sure a Soarer is exactly the same floor pan and subframe as a supra. A GS300 will take a Supra lsd and vice versa. LS400 internals will fit inside a supra case and vice versa. Some of the is200/300 diffs will fit but its model dependant. Some of the more obscure JDM only stuff also can be mix matched but its harder to find info on. Give it a shot mate. Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted January 29, 2017 Share Posted January 29, 2017 The Lexus SC430 also seems to share a floorpan with the Supra. According to the Lexus forums, using a Supra LSD is a popular conversion and a straight swap. (Presumably the SC430 uses a small case diff, none were limited slip from the factory) Quote Link to comment Share on other sites More sharing options...
np89 Posted January 29, 2017 Share Posted January 29, 2017 The Lexus SC430 also seems to share a floorpan with the Supra. According to the Lexus forums, using a Supra LSD is a popular conversion and a straight swap. (Presumably the SC430 uses a small case diff, none were limited slip from the factory) Yea thats correct. The SC series are the american version of a soarer Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted January 29, 2017 Share Posted January 29, 2017 Yea thats correct. The SC series are the american version of a soarer /QUOTE] The British version too And the only Soarer we ever got. Quote Link to comment Share on other sites More sharing options...
a98pmalcolm Posted January 29, 2017 Share Posted January 29, 2017 my diff popped before xmas and i have ordes an os giken. But be warnes dont leave it too long like i dis and my pinion is fucked which is an addional £750 Quote Link to comment Share on other sites More sharing options...
JackyBoi Posted January 29, 2017 Author Share Posted January 29, 2017 They do indeed. Sure a Soarer is exactly the same floor pan and subframe as a supra. A GS300 will take a Supra lsd and vice versa. LS400 internals will fit inside a supra case and vice versa. Some of the is200/300 diffs will fit but its model dependant. Some of the more obscure JDM only stuff also can be mix matched but its harder to find info on. Give it a shot mate. /QUOTE] Dude that is such useful information thank you so much! What about the Lexus IS200? There's loads of diff's available from that car. Any LSD that spins both wheels will do me a world of good [emoji23] is there an easy way to check which models came with an LSD? Quote Link to comment Share on other sites More sharing options...
Al Massey Posted January 29, 2017 Share Posted January 29, 2017 The question wasn't if a Lexus diff would fit, as we already know that's possible. It was if Lexus had the LSD diff Quote Link to comment Share on other sites More sharing options...
ripped_fear Posted January 29, 2017 Share Posted January 29, 2017 There is a kaaz lsd in the forsale section mate Quote Link to comment Share on other sites More sharing options...
sebas Posted January 29, 2017 Share Posted January 29, 2017 a lot of useful informations about diffs. ( I hope it is not a problem to post links from other forums ) http://www.supraforums.com/forum/showthread.php?608545-JZA80-Differential-Info! Quote Link to comment Share on other sites More sharing options...
JackyBoi Posted January 29, 2017 Author Share Posted January 29, 2017 The question wasn't if a Lexus diff would fit, as we already know that's possible. It was if Lexus had the LSD diff True! After looking online it seems all IS200 Sport's share the A02B which 'should' swap straight into mine given it was an A03B from factory. Both are small diff, big flange... There is a kaaz lsd in the forsale section mate /QUOTE] Yeah I saw that buddy, out of my price range though plus for a few hundred more you could get a brand new OS Giken Quote Link to comment Share on other sites More sharing options...
Frank Bullitt Posted January 29, 2017 Share Posted January 29, 2017 (edited) Glad you managed to find an OEM diff to fit. Are you happy going from a 3.266:1 to a 3.769:1 ratio? Edited January 29, 2017 by Frank Bullitt (see edit history) Quote Link to comment Share on other sites More sharing options...
Jellybean Posted February 2, 2017 Share Posted February 2, 2017 Glad you managed to find an OEM diff to fit. Are you happy going from a 3.266:1 to a 3.769:1 ratio? For about a year, I went from a 3.266:1 to a 3.769:1 (91-97 Aristo 3.0V (2JZ-GTE model, auto)) Found it fantastic , in the real world 100KM is generally the limit you can max out on a public road , the quicker acceleration was great! I could not list any negatives for my power level , just positives Going up the power band the strength of the Big case diff would be beneficial Quote Link to comment Share on other sites More sharing options...
np89 Posted February 2, 2017 Share Posted February 2, 2017 For about a year, I went from a 3.266:1 to a 3.769:1 (91-97 Aristo 3.0V (2JZ-GTE model, auto)) Found it fantastic , in the real world 100KM is generally the limit you can max out on a public road , the quicker acceleration was great! I could not list any negatives for my power level , just positives Going up the power band the strength of the Big case diff would be beneficial Have to agree, UK Spec auto diff i kept when i converted mine to 6 speed is the best diff choice of the lot. Mental acceleration and being the big diff will take the power and as much abuse as you want to throw at it! Quote Link to comment Share on other sites More sharing options...
a98pmalcolm Posted February 2, 2017 Share Posted February 2, 2017 I've gone for the 3.133 US spec ratio just as its closer to the JDM spec. I spin up to easy anyway lol Quote Link to comment Share on other sites More sharing options...
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