2010 IS-F LSD Differential into 2008 IS-F. Completed. *Pics*
#46
Instructor
I know it does look very similar to the mk4 torsen diff, I wouldn't imagine them being too far off other than gear ratios... I want a diff so bad for my ISF. It's NOT a fun car with out and I've been test driving ALL sorts of other cars because I hate this car so much with out a diff, when I want to have fun you cant the ediff is the biggest piece of **** in the world for hooligan stuff. After installing a mk4 auto TT diff in my 93 aristo the car went from ZERO to HERO in a matter of minutes. But I'm not willing to drop 5-8 k on a diff. 1000 + my labour for install on my aristo is acceptable. IMO i'd rather just dump another 8k into a car that was little more fun.
My 2 biggest gripes with the ISF is no manual 6 spd (just put the fing getrag form the mk4 supra in) and no diff!
I've looked at upgrading to a 2010 from a 08 but I couldn't justify like 20 grand more in cost for the same car. For no better condition other than maybe less miles.
My 2 biggest gripes with the ISF is no manual 6 spd (just put the fing getrag form the mk4 supra in) and no diff!
I've looked at upgrading to a 2010 from a 08 but I couldn't justify like 20 grand more in cost for the same car. For no better condition other than maybe less miles.
#48
Tech Info Resource
iTrader: (2)
Many of the auto equipped TT MkIVs came with open diffs. We had a big discussion about it on the MkIV email list about 14 years ago or so.
No, the Supra diff won't bolt in without some mods. I put both cars up on stands and ran a tape measure from one to the other and found out the MkIV unit would not work as a straight swap. Besides, the axle mounts are quite different.
No, the Supra diff won't bolt in without some mods. I put both cars up on stands and ran a tape measure from one to the other and found out the MkIV unit would not work as a straight swap. Besides, the axle mounts are quite different.
#49
Nice writeup. The rear carrier dimensions including the mounting ears look extremely similar to the early generation SC/GS and MKIV Supra diffs. Has anyone looked into this similarity? This must be limited to IS-F models only as I was under the impression that IS250/IS350 models used a smaller diff carrier design similar to the one found on the older MKIII Supra.
The IS350 uses the same size internals as the IS F (208mm), though nobody has confirmed whether or not the ring gear is interchangeable (none of the part numbers cross over). The olders cars either used a smaller 205mm differential design, or a larger 220mm differential (in the case of the MKIV TT 6-speed). I highly doubt either would be a direct bolt in to an IS F.
Random side note, not that there are going to be many lying around for a long time to come, but the 2013 LS F-Sport uses the same Torsen as the 2010+ IS F.
Jeff
#56
You could buy them there, but you will probably pay around 5 grand.
Look on http://car-part.com/ for "carrier".
Look on http://car-part.com/ for "carrier".
#58
i was thinking about doing this but now after hearing it does make much more of a difference im definitely gonna look into it cause i always spin out in the rain even with a slight sudden push on the pedal...