zazzn

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.

MisterSkiz

iTrader: (2)

With the 10+ LSD I was doing some hilarious *** wicked doughnuts in the snow the other day.

Best thing I have ever done for a car.

lobuxracer

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.

Jeff Lange

iTrader: (1)

The IS250 uses the same size internals as the A70 Supra, which is similar in size to the SC/GS/MKIV small differential. Toyota seems to have changed some of their measuring techniques over the years though, because while the IS300/250 differential is identical to the A70, Toyota referred to the A70 as a 200mm differential, while now referring to the same differential as a 205mm unit. Likewise for the early SC/GS/A80 N/A and TT A/T differential, it was originally referred to as 200mm, but later models (such as the early SC430) referred to it as 205mm. There are differences between these two seemingly same-sized differentials though, such as bearing diameters.

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.

I recall some of this discussion from years ago, and as far as I understand (I just looked at the NCF books and parts catalogs) the Torsen was made optional on A/T TT models in 1997 when the T2 replaced the T1 in the "200mm" A-code equipped models (The 220mm B-code 6-speed models kept using the T1).

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

ISF4life

iTrader: (30)

Look like i'm going to pick up a 2010 LSD and hopefully install this week thanks for the great infor .

darbs242

iTrader: (5)

Nice, I think your the forth one to do it as I believe I'm the third

ISF4life

iTrader: (30)

LOL , Tuned is coming next , lolz

Feng88

I want too ... where can i get one?

streetx

iTrader: (4)

gah i need to find one

Petshark

iTrader: (1)

You buy them where? Dealership?

MisterSkiz

iTrader: (2)

You could buy them there, but you will probably pay around 5 grand.

Look on http://car-part.com/ for "carrier".

2008ISF

iTrader: (1)

Anyone have good success finding a rear diff lately?

ISFNYC

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...

MisterSkiz

iTrader: (2)

Sounds like you need some better tires

darbs242

iTrader: (5)

^^^ + 1 that has nothing to do with the diff. Your vsc should save you too...