willstroo

Hey all, I am on the search for an MY10 onward "pumpkin" or complete diff for my 09 ISF. I am sick of the single spinning, its doing my head in.. One of the reasons i bought this car was to get sideways and have some fun when safe (on the track etc of course, or in Mexico where everything is legal).

I found what a wrecker is calling an LSD diff for the car, but the problem is that the DIFF came from a 2009 compliance (2008 build) ISF. Which obviously comes with the non LSD. There doesn't seem to be any way (without cracking the back of the diff, which he wont do) to check if it actually is an LSD with the Torsen diff centre. Which under no load acts like a single spinner non LSD (as told by Lexus tech, who knows far better than me).

Does anyone know any magical way to check, barring putting it into the car and trying it? I am so torn, price is good, but its in a different state and seems too risky..

Thanks in advance

mikersoft

iTrader: (1)

There must be some way to identify a true Torsen LSD externally.. I'd be surprised if there wasn't..

I'm sure someone with that knowledge will chime in eventually... Good luck

-Mike

willstroo

Thanks Mike, I would have thought so too..

Its very frustrating as its sitting there at the wreckers just begging to put my car sideways!

Here are some photos of the diff in question

Piston1047

Maybe their is a part number cast in? I think they have different part numbers.
I'm surprised you have that much of a problem getting sideways, My ELSD will get pretty sideways when I need it too, it's nothing like the open diff I used to have in my 240. Maybe I just have a lot of practice.

willstroo

Yeah there is no way to tell on the casings apparently as the casings are all the same part number. There are some numbers on the stickers on the casings sometimes, but that is info on where the part is made, not what it is.

I can get sideways haha, but its kind of like, single spinnnnnnnnnnnnallllgooood FUKN SIDEWAYS!!!!! Im so used to proper LSD's and a progressive step out, fun controllable sliding. E-Diff is madness, like a switch between straight and out snap oversteer. Only problem is i dont know when the switch will turn on.

Max16

Ask him to pull both axles, if you don't see a bar and can see directly thru the diff it is a Torsen.
That's normally how you spot a Torsen.

ISF4life

iTrader: (30)

if u look at the serial number on the out side from 08 to 09. Then from 10 to 12 you can tell , and of course driving it lolz.

Fsport2UR

If it really comes down to it, I would offer him a hundred just to open it. It would be worth it just to know for sure.

ISF4life

iTrader: (30)

HERE ARE THOSE PICS I SWAPPED

lobuxracer

iTrader: (2)

Part numbers and production dates for Torsen LSD units:

41110-53290 FINAL GEAR RATIO=47:16=2.937 (08/2009 - 09/2011)
41110-53291 FINAL GEAR RATIO=47:16=2.937 (10/2011 - 04/2012)
41110-53292 FINAL GEAR RATIO=47:16=2.937 (05/2012 - 07/2014)

Gearbangin

iTrader: (7)

Got the whole pumpkin from a low mile 2011 for 1500 shipped!!

ISF4life

iTrader: (30)

NOT BAD

lobuxracer

iTrader: (2)

After installing the OS Giken TCD, I would not go to all the work of replacing the diff just to install a Torsen. Sure, they're better than a fully open diff, but once one side loses traction (like lifting the inside rear on track out), you're no better off than an open diff. It was worth every penny, and I can say I was a bit skeptical about being able to notice it driving around town, but I was quite wrong, it is very noticeable especially with the stiffness of the '08 suspension.

I need to put an OS in my Supra now. That OEM Torsen just doesn't cut it anymore.

Max16

I just finished installing the ATS silent metal unit in mine. I should get the car back on the road in about a week. I will post a review since these units go for around 1000$ + install

Gearbangin

iTrader: (7)

Wasnt any work for my just the shop. The lap times at Fuji raceway say the Torsen contributes to quicker times and I like the oem maintenance schedule for a torsen unit.