From the sticky;
Any LSD for a 'small diff' application will install into any other 'small diff'. A TT auto or NA Supra's factory option LSD or aftermarket LSD intended for a TT auto or NA will install flawlessly into any other 'small diff' whether it came from a MK4, SC, or GS. "
Answered my question; thanks so much, boss!
If I'm reading correctly, I should be able to install a 4.08 ring and pinion set from a mid 90's SC300 onto my Auto-TT diff?
More specifically, I'd like to upgrade the differential to an OS Giken unit, and I'd like to go to a 4.10-ish ratio...the stock 3.76 is a bit tall coupled with my T56M....4.10 would bring it right about in line with stock V160 gearing.
If this is the case, all I'd need would be the new diff plus Lexus p/n 41201-80027, and the various seals, bolts, etc....
Lots of good info in this thread! Thanks for all who have contributed.
93 Supra TT Sportroof | HKS Hipermax IV GT, TRD Sway Bars, CCW Classics + Toyo R888r | T56 Magnum Swap | Currently under the knife for: PHR Street Torque Single kit (6766BB), GSC S1s, ETS Front Mount, Motec M1, Full Radium fuel system w/ ID 1050s
17 4runner TRD Offroad
14 Audi SQ5
Sweet. Thanks for the confirmation!
Hey guys, my IS300 has the Subara BRZ rear end from the but the gearing totally sucks! It has 4.11 gears that run out way too soon. Can anyone assist me on figuring out what can fit in place of this and what can get me down to the mid 3s on gearing? I have looked for a ring and pinion for this rear and but NO ONE makes 3.xx for it, everyone wants more than 4.
Weir Performance is another good place to call - they deal with a lot of MK3 and other Toyota rear end parts.
41201-80125 is a 3.58:1 gear set that should still be available from Toyota. It was used on European models until 2010, so you may need to bring it in from Toyota Europe or Japan.
41201-80050 is a 3.73:1 gear set
41201-80052 is a 3.91:1 gear set
Last edited by Jeff Lange; 07-19-2018 at 10:22 PM.
2011 Lexus IS350 Obsidian "F-Sport 6MT" with LSD
1986 AE86 Corolla GT-S Supercharged
Compatibility with a MK4 chassis is unconfirmed. Potential issues include incompatible axle stubs and an incompatible drive shaft flange. But adding a 2.917 would be exciting for the auto guys.
I have a 98 supra that was originally a N/A car with an auto transmission but I went ahead and did the TT JDM non-vvti swap with the 5 speed transmission. I want to upgrade to 6 speed V160. Do I have to change my differential? If so can anyone tell me if this looks correct for a 6 speed TT differential? I am making a deal with someone but want to make sure its what's being advertised. Thanks in advance.
The picture is a big flange 220mm 'big diff' from a Supra, and depending on the market it will be a 3.133:1, 3.266:1 or a 3.538:1. The picture isn't quite good enough to say for certain but it looks to have the 1-pot 'NA' rear brakes which would firmly establish that rear end as the 3.266:1 from a 93 to may 96 JDM Supra RZ TT 6-spd. As such, it would be perfect for a V160 conversion and could use all the OEM TT 6-spd support parts to complete the install (drive shaft, etc). Either way it is overwhelmingly likely that it's a 3.266:1 JDM RZ subframe just because it is incredibly unusual to see a US spec rear subframe sold in that fashion, and the 3.538:1 was a Euro/Mid East market option only and profoundly rare compared to the already uncommon US spec cars.
Be mindful also about the OBD-II complications of the swap, being a '98. It will vary by county in California as I understand it but it is extremely problematic to get a JDM 2JZ-GTE swapped fully over to an full Cali-legal OBD-II compliant configuration that'll pass BAR standards.